Best NAS for Docker in 2026: 5 Practical Picks

Running Docker containers on a NAS turns a file server into a self-hosting box for Home Assistant, Immich, Jellyfin, Pi-hole, Nextcloud, and dozens of other always-on services. How many containers a NAS can carry comes down to three things: CPU cores, memory, and the quality of the container-management software.

Many NAS units ship with 4 GB to 8 GB of RAM. That covers the NAS operating system plus a few light containers, but a serious stack needs 16 GB to 32 GB, so the memory ceiling matters as much as the base configuration. Core count decides how many busy containers can run at once without waiting on each other.

This guide compares five NAS devices for Docker and self-hosting on CPU, memory capacity and ceiling, container software, and networking.

Our Pick: TerraMaster F4-424 Pro

The TerraMaster F4-424 Pro ships with 32 GB of DDR5 and an 8-core Intel Core i3-N305, so it can run a large container stack without a memory upgrade.

• CPU: Intel Core i3-N305, 8 cores and 8 threads, up to 3.8 GHz
• Memory: 32 GB DDR5 on one SODIMM, which TerraMaster lists as the maximum
• Storage: 4x SATA bays + 2x M.2 NVMe (PCIe 3.0 x1)
• Network and video: 2x 2.5GbE, HDMI 2.0b

The i3-N305 has eight efficiency cores for concurrent services. An Immich machine-learning worker, Jellyfin using Quick Sync for a transcode, Home Assistant, Nextcloud, a PostgreSQL database, and a reverse proxy can run together with cores to spare. A quad-core chip like the TS-464’s N5095 runs the same services, but with less headroom when several of them are busy at once.

The 32 GB is the real differentiator. Immich with its machine-learning worker, Nextcloud with a database, and Jellyfin during a transcode can each want several gigabytes, and the NAS OS needs its share. On an 8 GB NAS, three heavy apps can push the system into swap; the F4-424 Pro has room for all of them.

TOS includes Docker Manager in its App Center for pulling images, creating containers, and viewing logs. For more management options, install Portainer or Dockge as a container and manage the rest from there.

Some owners go further and replace TOS with Proxmox, running Docker inside an LXC container. Know the cost first: TerraMaster’s FAQ says installing another operating system voids the warranty and ends technical support. If you want Proxmox, our home lab starter guide covers running it on separate hardware.

The other trade-offs: there is no PCIe slot for 10GbE, and TOS has a thinner app catalog than DSM or QTS for backup, photo, and surveillance duties.

Best Value: QNAP TS-464

The QNAP TS-464 pairs the most flexible container software in this guide with a quad-core Intel CPU and a PCIe expansion slot.

• CPU: Intel Celeron N5095, 4 cores and 4 threads, up to 2.9 GHz
• Memory: 8 GB DDR4 in two SODIMM slots, 16 GB maximum (QNAP)
• Storage: 4x SATA bays + 2x M.2 NVMe (PCIe 3.0 x1)
• Network and video: 2x 2.5GbE, one PCIe Gen 3 x2 slot, HDMI 2.1

Container Station is the standout. QNAP lists support for Docker, LXD system containers, and Kata containers (lightweight VMs), all from one interface. LXD means you can run a full Ubuntu or Debian system beside your Docker containers for services that expect a traditional Linux host.

The stock 8 GB handles a moderate stack. When you outgrow it, QNAP’s official maximum is 16 GB across the two SODIMM slots. That covers a broad self-hosted set: Jellyfin, Home Assistant, Pi-hole, Nextcloud, Vaultwarden, Paperless-ngx, a reverse proxy, Uptime Kuma, and Gitea.

Intel Quick Sync helps media containers. Jellyfin and Plex can hand transcodes to the N5095’s media engine instead of the CPU cores, which leaves CPU time for the rest of the stack. For Plex-specific planning, see our best NAS for Plex guide.

The PCIe Gen 3 x2 slot is the other reason to pick it. A 10GbE card removes the network as a bottleneck when several containers move large files at once. Among these five, only the TS-464 and the two-bay TS-264 have a PCIe slot.

The limitations: 16 GB is the ceiling, so memory-hungry apps like Immich use up a large share of it. QNAP also needs disciplined security. Keep QTS updated, reach it remotely through a VPN rather than exposing it to the internet, and disable UPnP.

Best Software: Synology DS925+

The Synology DS925+ doesn’t win on raw hardware, but Container Manager on DSM is our preferred Docker interface, and it is the only pick with ECC memory.

• CPU: AMD Ryzen V1500B, 4 cores and 8 threads, 2.2 GHz
• Memory: 4 GB DDR4 ECC, expandable to 32 GB
• Storage: 4x SATA bays + 2x M.2 NVMe
• Network: 2x 2.5GbE; no PCIe slot

Container Manager runs multi-container projects from Compose files through its Project dashboard, so you can upload or paste a docker-compose.yml and manage the whole stack from DSM. The V1500B’s eight threads handle a moderate stack comfortably; the 4 GB base memory is the part to upgrade first.

ECC memory corrects single-bit memory errors that could otherwise corrupt a database or crash a long-running container. The DS925+ takes up to 32 GB of ECC DDR4.

The broader DSM ecosystem also reduces how many containers you need. Active Backup for Business handles PC and server backups, Synology Drive covers file sync, and Synology Photos covers basic photo management, so a Synology owner may never deploy Duplicati, Nextcloud, or Immich.

Know the limits. The DS925+ has no PCIe slot, so it cannot take Synology’s 10GbE card, and networking tops out at its two 2.5GbE ports. Since DSM 7.3 (October 2025), 2025 Plus, Value and J models accept third-party 3.5-inch HDDs and 2.5-inch SATA SSDs; M.2 storage pools and cache still need drives on Synology’s compatibility list.

Best 10GbE: UGREEN DXP4800 Plus

The UGREEN DXP4800 Plus has built-in 10GbE and the highest memory ceiling in this roundup.

• CPU: Intel Pentium Gold 8505, 1 performance core + 4 efficiency cores, 6 threads, up to 4.4 GHz
• Memory: 8 GB DDR5, expandable to 64 GB (UGREEN)
• Storage: 4x SATA bays + 2x M.2 NVMe
• Network and video: 10GbE + 2.5GbE, 4K HDMI

The Pentium Gold 8505’s performance core helps latency-sensitive services such as databases and reverse proxies, while background containers spread across the four efficiency cores. The chip also has Intel Quick Sync for media containers.

The 64 GB ceiling is the highest here: double the DS925+ and four times the TS-464. Plan to upgrade from 8 GB before deploying a large stack.

Built-in 10GbE removes the need for a PCIe card. If your network has a 10GbE switch, containers that serve large files, such as Nextcloud, Jellyfin, and SMB shares, benefit immediately. The extra 2.5GbE port can carry a separate management network.

The UGOS Pro Docker app installs from the App Center and manages images, containers, networks, and Compose projects from the web interface. The trade-off is software maturity: UGOS Pro is the newest NAS OS in this guide, with a thinner app catalog and fewer community guides than QTS or DSM.

Best 2-Bay: QNAP TS-264

The QNAP TS-264 is the TS-464’s container platform in a two-bay chassis: Container Station, a quad-core N5095, and a PCIe slot.

• CPU: Intel Celeron N5095, 4 cores and 4 threads, up to 2.9 GHz
• Memory: 8 GB DDR4 in two SODIMM slots, 16 GB maximum (QNAP)
• Storage: 2x SATA bays + 2x M.2 NVMe (PCIe 3.0 x1)
• Network and video: 2x 2.5GbE, one PCIe Gen 3 x2 slot, HDMI 2.1

You get the same Container Station software and the same CPU as the TS-464, so the container guidance above applies: the stock 8 GB handles a moderate stack, and the two SODIMM slots take up to 16 GB.

The PCIe slot takes a 10GbE card or other expansion later, and the two M.2 slots take SSDs for caching or a small fast pool. The trade-off is storage: two bays mean a mirror, so capacity grows only by replacing both drives. If you expect your data to grow quickly, start with the TS-464, or see our best 4-bay NAS guide.

How to Choose: Buying Criteria

RAM: The Most Important Docker Spec

Memory decides how many containers you can run at once. As a rough planning guide:

The most common mistake is buying a 4 GB NAS and assuming Docker will scale. It runs, but a few containers use up the headroom and the system starts swapping. Budget for a memory upgrade on every pick except the TerraMaster.

Memory prices move quickly, so check current module prices before you budget an upgrade.

CPU Cores: More Matters More Than Clock Speed

Docker containers share CPU time. A dual-core CPU with two busy containers has no headroom left; an 8-core CPU with the same load still has most of its cores free.

The core and thread counts in this guide:

1. TerraMaster F4-424 Pro (i3-N305, 8C/8T): the most headroom for CPU-heavy services such as Immich’s machine-learning worker and OCR, alongside light ones.
2. Synology DS925+ (Ryzen V1500B, 4C/8T): eight threads for a moderate stack, especially when DSM’s own apps replace some containers.
3. UGREEN DXP4800 Plus (Pentium Gold 8505, 5C/6T): one fast performance core plus four efficiency cores.
4. QNAP TS-464 and TS-264 (Celeron N5095, 4C/4T): suitable for several home services with moderate CPU use.

For containers that do OCR, indexing, or software transcoding, having a free core matters more than a few hundred megahertz of clock speed.

Container Management Software

QNAP Container Station (TS-464, TS-264): The most versatile option, with Docker, LXD, and Kata containers in one interface (Kata requires an x86 NAS, per QNAP). The best choice if you want a GUI-first experience with system containers too.

Synology Container Manager (DS925+): Our preferred interface. Compose-based projects run from the DSM interface, and DSM handles accounts, backups, and notifications around them. It sticks to Docker, without QNAP’s LXD or Kata support.

TerraMaster Docker Manager (F4-424 Pro): Functional basics: pull images, create containers, view logs. Many owners add Portainer and manage everything from there.

UGOS Pro Docker app (DXP4800 Plus): Manages images, containers, networks, and Compose projects from the web interface. It is newer than QNAP’s and Synology’s tools, with a smaller body of community guides.

Networking for Containers

For most home setups, 2.5GbE is plenty: a dozen containers serving web interfaces barely touch the link.

10GbE matters when containers move large data, such as Nextcloud syncing big folders, Jellyfin streaming 4K remuxes to several clients, or NFS-mounted volumes used by other machines. The UGREEN DXP4800 Plus includes 10GbE. The QNAP TS-464 and TS-264 can add it through their PCIe slots. The DS925+ and TerraMaster F4-424 Pro cannot.

Bridge networking works on all five. Macvlan, which gives containers their own LAN addresses, may need command-line setup depending on the platform.

Bottom Line

The TerraMaster F4-424 Pro is the best NAS for Docker. With 32 GB of DDR5 and an 8-core i3-N305, it runs a large stack on day one without an upgrade. Just note that TerraMaster voids the warranty if you replace TOS.

For the best balance of container software and expansion, the QNAP TS-464 gives you Container Station’s Docker, LXD, and Kata support plus a PCIe slot for 10GbE. Upgrade to its 16 GB maximum as the stack grows.

If ease of administration and ECC memory matter most, the Synology DS925+ runs Container Manager on DSM with up to 32 GB of ECC memory. It has dual 2.5GbE but no PCIe or 10GbE upgrade path.

For built-in 10GbE and the highest memory ceiling, the UGREEN DXP4800 Plus delivers, with the caveat that UGOS Pro is the youngest platform here.

If two bays are enough, the QNAP TS-264 gives you the TS-464’s CPU, Container Station, and PCIe slot in a smaller box.

Whichever you choose, pair it with quality storage. See our best hard drives for NAS guide, and our full NAS comparison for the broader picture.