- Centralizing ROMs and data on a NAS allows convenient access from multiple devices and improves security compared to loose external drives.
- Separating the disk by topic, importance, and use helps decide what goes on each volume or disk, reducing wear and tear and facilitating backups.
- Configuring RAID and mapping NAS folders as network drives makes emulators and ROM managers work as if everything were local.
- A well-configured NAS can also act as a private teamwork cloud, automatically synchronizing projects and collections.

If you've set out to set up the The ultimate collection of retro ROMs on a NAS To play from the living room or any device at home, it's normal to feel a little lost at first. Between EmuDeck, Steam ROM Manager, SMB, RAID, backups, and terminology like "No-Intro," it seems like you need a degree to understand it all.
The good news is that, with minimal planning, you can have a very convenient system where Keep all your ROMs organized, secure, and accessible. From your mini PC, your Steam Deck, or any other device on the network. In this article, we'll put several pieces together: how to use a NAS, how to organize folders, what type of RAID (or lack thereof) is right for you, how to map drives in Windows, and how all of this fits with managing ROMs and retro collections.
What is a NAS and why is it such a good idea for your ROMs?
A NAS (Network Attached Storage) is basically a mini computer designed almost exclusively for storageIt's not just a simple external hard drive: it has its own operating system, connects to your local network via cable, and allows you to create your own "private cloud" at home to access your files from any device.
For a large collection of ROMs, a NAS is perfect because centralizes all content in a single pointYour mini PC, your Steam Deck (via network), your laptop, or even other devices can read the ROMs from the same location, without having to duplicate them on each SD card.
In addition, many NAS devices allow configuration RAID and fast read/write volumesThis is very useful if you want to work with large files (for example, entire collections of ISOs for systems like PS2 or GameCube, or even photo and video projects). And if you're also a content creator, it's useful for both your ROMs and your professional projects.
Another strong point is that a modern NAS offers options such as automation, media servers and remote accessThat means you could, for example, use it as a movie/TV show server and, at the same time, as a ROM library for your living room emulation machine.

Choosing a NAS and drives: power, bays, and reliability
When buying a NAS for your ROMs, there is no single right answer, because It depends on your budget, the space you need, and the performance you're looking for.There are very simple two-bay models and much more powerful ones with 6, 8 or more bays, 10GbE ports, Thunderbolt, M.2 slots, etc.
Brands like QNAP or Synology are common because they offer very complete ecosystems with easy-to-use softwareFor example, some creators work with models like the QNAP TVS-672XT (6 bays) or the QNAP TS-832X (8 bays), combined with a 10Gb network to be able to edit directly on the NAS without noticing much difference compared to a local SSD.
Beyond the specific model, look at aspects such as number of bays, 10GbE capability, RAID compatibility And, if you're interested, future expansion is possible. If your idea is to have a mega collection of ROMs (several terabytes), a NAS with 4 bays or more might be a good fit, allowing you to grow over time without running out of space in the first year.
Regarding the disks, ideally you should use HDDs designed specifically for NASbecause they are designed to operate for many consecutive hours over years. Typical examples include Seagate IronWolf and Western Digital Red, which are series geared towards this 24/7 use and offer better reliability compared to standard desktop hard drives.
Note that The total capacity you will need depends on your ROMs and other data.If in addition to games you are going to store photos, home videos or professional video projects, you will probably want to go for larger drives (for example, 4 TB, 6 TB or more per bay).
Connecting the NAS to your network and your PC: speed and options
For playing ROMs stored on the NAS to be convenient, it is key that the Network connection should not be the bottleneckIf you're only going to use it for ROMs and normal files, a gigabit (1Gb) wired network is usually enough, but if you're also going to edit heavy video or work with huge files, you might be interested in upgrading to 10Gb.
The best way to get the most out of a modern NAS is to connect it via high-quality Ethernet cable (e.g., Cat7) to your router, switch, or directly to your computer's 10Gb network card. Some NAS devices also allow direct Thunderbolt connection to a computer for very high speeds, but before you start, make sure your computer supports that type of connection.
If your PC doesn't have a built-in 10GbE port, you can add one. a 10Gb PCIe card (like the QXG-10G1T in the QNAP ecosystem) and connect it to the NAS via a compatible 10GbE switch. When configured correctly, it's possible to exceed real-world speeds of 900-1000 MB/s, which is incredible for real-time work.
With one or more NAS devices on the network, you will find a 10GbE switch that allows you to connect multiple devices without limiting the speedModels like the QNAP QSW-1208-8C are an example: you connect your NAS, your work PC, your living room mini PC, etc., and they all see each other at high speed.
Another option is to use the router exclusively as a "switch", which is possible but... It tends to significantly limit performance Because ISP-provided routers rarely offer 10GbE ports or even good sustained 1GbE performance with many connections. If your usage is light and you don't need high speeds, it might work, but if you want something high-performance, a dedicated switch is the serious option.
You also have the possibility to Connect the NAS directly to your computer via cable., without going through a router or switch, although in that scenario you lose the ease of creating a private cloud accessible from outside the home, or of sharing the NAS with more devices simultaneously.
First steps in setting up the NAS
The initial setup of a NAS usually follows a fairly similar pattern, although Each brand has its own assistant and utilities.In general terms, the basic boot process consists of installing at least one disk, turning on the NAS, and accessing its management interface through the browser.
The first step is to insert one or more HDD drives (or SSD/NVMe if your NAS allows it) into the bays, fitting them into the trays and sliding them into the chassis according to the manufacturer's instructions. Then connect the power cable, the network cable(s) to the router or switch, and turn on the NAS.
Once the computer has finished booting up, there are several ways to locate its IP address within your local networkOn some models (such as certain QNAP devices), you can press a front button to display the IP address on the screen. On others, you can use dedicated applications like QFinder (QNAP) or generic network scanning tools.
On macOS, apps like Discovery can help you detect the NAS. On Windows, often It appears directly in File Explorer Under “Network”. Once you have located the IP address (something like 192.168.1.13), enter it into your browser and follow the installation wizard provided by the brand.
During that wizard you will be able to define things like NAS name, administrator username and password, time zone And, very importantly, the type of IP address it will use. If you want to avoid future problems, it's recommended to configure a static IP address instead of an automatic one, so that the NAS doesn't change address every time you restart the network.
In that initial configuration, the system usually Prepare and format the disks, install the firmware (e.g., QTS on QNAP) and get it ready for you to start creating shared volumes and folders. From there, you can log in with your username and password to fine-tune the remaining settings.
RAID, volumes, and how it affects your ROMs
One of the key pieces when setting up a NAS is deciding If you're going to use RAID, and what level are you interested in?RAID (Redundant Array of Independent Disks) is simply the way in which the system combines several disks to form one or more logical volumes, with different priorities between speed and security.
There are many levels of RAID, but in the typical home and creative scenario, the following are usually of interest: RAID 0, RAID 5 and RAID 6RAID 0 combines multiple disks, adding their capacity and greatly increasing speed, but without any redundancy: if one disk fails, you lose everything. RAID 5 distributes data and parity across multiple disks, allowing one to fail without data loss. RAID 6 can withstand the failure of two disks at the cost of using more parity space.
In the context of video, photos, or large ROM libraries, RAID 5 is a classic because It offers a good balance between safety and performance.If you have 6 disks in RAID 5, the reading is distributed between 5 of them (one stores the parity information), so you can achieve very high speeds, enough even to edit 8K RAW video if your network connection is up to it.
However, for content that subjects the disk to constant stress, such as torrent or eMule download folders that spend all day reading and writingUsing RAID can have an undesirable effect: instead of wearing out a single disk, you wear out all the disks that are part of the RAID.
Therefore, for those folders subjected to intensive use and whose content It is not "irreplaceable" (e.g., movies, music, downloadable ROMs, etc.)Many users prefer to place them on non-RAID disks, or at least separate them from the disks that hold truly critical data such as family photos or important documents.
When creating volumes, systems like QNAP let you choose between static volumes and “thick” volumes (or “thick volume”) associated with a RAIDIf you're looking for maximum speed and simplicity on a single disk, a static volume usually works well; if you want RAID, you'll normally create a "thick volume" on the chosen set of disks and then define the shared folders from there.
How to organize folders and disks: ROMs, multimedia, and data
Before you start copying your collections, it's worth taking a moment to design how you will organize the foldersIf you do it right from the start, you'll save yourself a lot of headaches later on, searching for things, managing backups, and deciding what goes in RAID and what doesn't.
A good way to think about structure is to create a triple classification: by topic, by importance of the data, and by frequent use/accessFrom there, you assign each type of information to the disk or volume that best suits it.
In classification by theme You could separate it into large blocks like:
- Multimedia: Video (movies and series), music, photos and home videos.
- Data and applications: documents (Word, Excel, PDF…), installers and portable apps.
- Downloads: torrents, eMule, generic downloads, temporary ROM packs.
Then, in the ranking by importance, you divide what Do you really want to protect your property with intensive backups? (family photos, home videos, personal documents, work projects) of which, although it hurts to lose, you could download or rebuild with some effort (ROMs, movies, music, installers, etc.).
The third aspect is the constant use or access of the disk. This is where especially The torrent, eMule, and other download folders are active and seeding almost all day.This type of use puts a lot of strain on the disks compared to photos or documents that are only read occasionally.
If you have a NAS with two drivesA very sensible strategy is to dedicate:
- Disco 1: everything that is used intensively and is not critical (video, music, downloads, general ROMs).
- Disco 2: everything that's really important (home photos and videos, documents, personal data), which you'll also back up on an external drive.
Following that logicYou could distribute it like this:
Disc 1: “Replaceable” multimedia, downloads and ROMs
This will be the album that is It's practically always awake because it hosts torrents, movies, ROMs, and other constantly used content.This is where it would make sense to place:
- /volume1/video: movies, series, downloaded videos.
- /volume1/music: music collection.
- /volume1/Applications: downloaded apps, portables or installers that you want to keep.
- /volume1/Downloads: general folder for browser downloads, etc.
- /volume1/Downloads/Torrent and /volume1/Downloads/Emule: specific folders for download clients.
- /volume1/ROMs: Main ROM structure by system, if you decide that the general ROMs are not critical information.
Note that we've left out here. home photos and videos, as well as personal documentswho will go on to the second album to be more at ease and with external support.
Disc 2: Important data, personal photos and videos
The second disc is reserved for everything whose loss would be a tragedy: photographs, family videos, documents, work or study projectsHere you will also schedule backups to an external drive on a regular basis.
La Meeting structure It could look something like this:
- /volume2/photo: Home photos and videos (if you want, you can separate them into /photo and /video, but many apps like Photo Station or Plex already filter by file type).
- /volume2/Data: all your documents. Inside you could have a subfolder for each user (for example, /volume2/Data/Juan, /volume2/Data/Ana, etc.).
From a visual point of view, in your file explorer you will see the shared folders grouped by topicAlthough physically some reside in one volume and others in another, the important thing is that this separation by disks allows the disk storing sensitive data to be in hibernation most of the time, because it isn't subjected to the constant strain of torrents and downloads.
Map the NAS as a drive in Windows for your ROMs
So that EmuDeck, Steam ROM Manager, or other launchers see your ROMs on the NAS as if they were local folders within WindowsThe most convenient way is to map a folder on the NAS as a network drive (for example, the letter Z:).
In Windows 10 (and current versions) the process is quite simple. First, you open the Open File Explorer and go to “This PC”In the top bar you will find an option that says "Connect to network drive" (or similar depending on the version).
When you click, a window opens where you can choose the drive letter you want to assign (for example, A: for ROMs) and the network folder of the NAS you want to map, something like \\NAS-IP\ROMs or \\NAS\ROMs. If the folder doesn't appear directly in the list, you can click "Browse" and search within the network until you find it.
When you select the folder, check the option to “Reconnect upon logging in” This will allow the drive to mount automatically every time you boot Windows, provided the NAS is powered on. Finally, enter your NAS login credentials (username and password) and confirm.
From that moment on, the NAS folder appears as if it were just another internal drive (for example, R:\)All the software on your PC—including emulators, launchers, ROM managers, and renaming tools—will be able to work with that path without worrying about whether it's actually on the network.
EmuDeck, Steam ROM Manager and network ROMs: what to keep in mind
If you use EmuDeck on devices like Steam Deck or mini PCs with SteamOS, it's normal to wonder if it's possible Keep ROMs on a NAS without copying them to the SD cardTechnically, you can mount remote folders via SMB or NFS, but there are several practical nuances to consider.
On one hand, Steam ROM Manager (the one used with EmuDeck to generate shortcuts to games on Steam) It usually works best with routes that the system sees as local.If in desktop mode you only see the network folder "mounted" temporarily, Steam ROM Manager may not detect it the same way as a folder in /home or on the SD card.
The typical solution involves Mount your NAS SMB folder as if it were a local path in the file system (for example, in /run/media/user/ROMs or similar), either by editing fstab or using graphical tools to persistently mount network resources. Each distribution has its own nuances, but the idea is always the same: to make the NAS path appear as just another folder, without needing to navigate manually at every boot.
Another aspect to consider is the latency and connection performanceFor ROMs of classic consoles (NES, SNES, Mega Drive, PSX, etc.), playing over a gigabit network from a NAS is usually more than enough, but for systems that use large ISOs or more intensive data streaming, an unstable network can make a difference. The more robust your cabling and switch/router, the fewer problems you'll have.
Regarding whether ROMs "have to be local" or not, the realistic answer is that It's not mandatory, but many configurations are designed assuming local storage.If you're new to Linux and SteamOS, you might find it easier to start with ROMs on SD cards and, once you get the hang of mounting network drives, migrate to a central library on the NAS.
Advanced ROM Organization: No-Intro, Regions, and Automation
Besides where you store your ROMs, it's important how do you organize and rename them?If you want to have complete control over which games you own, which versions (regions), and which ones you're missing, many people rely on the No-Intro data structure.
No-Intro is a project that maintains Very precise lists of "clean" ROMs, well named by system and regionBy using your DATs with ROM management tools (such as clrmamepro, Romulus, or similar), you can rename your collections, verify integrity, and know exactly what you are missing or what you have extra.
Organizing your folders with the No-Enter naming convention allows you, for example, to have subfolders by system and region within your NAS /ROMs folder: NES (EU), NES (USA), SNES (JAP), etc. This way, when an emulator or a front-end generates metadata or cover art, everything will be clearer and more consistent.
Regarding automating space management, the idea of a tool that migrates rarely played ROMs to the cloud or NASand only send the games you use frequently back to the SD card. While there's no "ultimate app" that does everything imaginable (detecting what you don't play, uploading to the cloud, simulating space usage, etc.), there are partial solutions:
- Scripts and synchronization tools that They copy or move ROMs between the NAS and the device.
- Cloud services combined with rclone-type clients, which They allow you to mount remote storage as if it were local. (with the exception of performance).
- Managers that read data from saved games to detect which titles have been untouched for a long timeHowever, this is usually very platform-specific.
If you don't want to complicate things too much, a practical solution is to use the NAS as master repository of your entire collection and keep only a selection of active games on the device's SD card, which you rotate manually or with small scripts depending on the available space.
Create a private team cloud with the NAS
If you share your ROM collection or content projects with other people, a modern NAS allows you to set up a private cloud for your team, similar to services like Google Drive or Dropbox, but hosted in your own home or studio.
Applications like QSync (in the QNAP ecosystem) are used for Define shared folders between multiple NAS users that are automatically synchronizedand you can complement that flow by learning to securely share passwordsFor example, you could have a "Retro Edition" folder where you keep ROM hacks, overlays, video projects about games, etc., and it stays updated on your editors' computers without them having to manually upload/download.
The workflow would be something as simple as: you record content, copy the files to the mapped folder on the NASAnd within minutes they appear on the editor's machine, ready to use. All of this can be combined with your existing folders for ROMs and multimedia.
For this private cloud to work from outside your local network, you need Open certain ports on your router and redirect them to the NAS. This is done by accessing the router's interface (usually by navigating to an IP address like 192.168.0.1), logging in with your credentials, enabling advanced mode, and configuring UPnP or specific port forwarding (443, 8080, 80, and any others required by the NAS system).
Every router is different, so it's important to check. the specific documentation for your NAS and your carrier to avoid leaving security holes. Even so, once you have it properly set up, being able to access your folders and collections from anywhere is truly wonderful.
Keep in mind that the upload speed of your fiber connection is usually the limiting factor. For large transfers, commercial cloud services are sometimes faster, but the control and convenience of your own NAS It's worth it for many users, especially if you don't want to depend on third parties or monthly fees.
With this combination—a well-configured NAS, suitable disks, folders organized by importance and theme, ROMs mapped as a network drive, and, if you want, a private cloud for your computer—you end up with a system where Your retro collection and your important data coexist in an organized, secure, and accessible way., significantly reducing the risk of losing everything due to a failure of any external hard drive.
Table of Contents
- What is a NAS and why is it such a good idea for your ROMs?
- Choosing a NAS and drives: power, bays, and reliability
- Connecting the NAS to your network and your PC: speed and options
- First steps in setting up the NAS
- RAID, volumes, and how it affects your ROMs
- How to organize folders and disks: ROMs, multimedia, and data
- Map the NAS as a drive in Windows for your ROMs
- EmuDeck, Steam ROM Manager and network ROMs: what to keep in mind
- Advanced ROM Organization: No-Intro, Regions, and Automation
- Create a private team cloud with the NAS