70B capacity
The 128 GB tier holds many quantized 70B models with headroom for context and local supporting services. Memory is soldered.
Expandable 128 GB compact workstation
MINISFORUM MS-S1 Max for local LLMs
The MS-S1 Max combines Ryzen AI Max+ 395 and up to 128 GB of unified memory with dual 10GbE, four USB4 ports, two M.2 slots, and an internal PCIe 4.0 x4 slot. It is particularly well suited to a fixed model server or small rack installation.
Bottom line
Who is the MS-S1 Max for?
Server connectivity
Two 10GbE ports, Wi-Fi 7, and four USB4 connections make it practical with network storage, multiple clients, and fast external drives.
More expansion than a mini PC
A mechanical x16 slot with an electrical PCIe 4.0 x4 link can accommodate networking, storage, or other cards. Bandwidth and physical dimensions still need to match.
Hardware in detail
What the 128 GB configuration provides
128 GB / 2 TB
MINISFORUM MS-S1 Max
Capacity-focused Ryzen AI Max workstation with an internal power supply and server connectivity.
Good for
Quantized 70B models, local knowledge systems, several network clients, and buyers who need more expansion and rack options than a conventional mini PC.
Limits
Memory cannot be upgraded. The internal PCIe connection uses four electrical lanes, so it is not equivalent to a fully connected desktop GPU slot.
- CPU / graphics
- Ryzen AI Max+ 395 / Radeon 8060S
- Memory
- 128 GB LPDDR5X-8000, shared
- Storage expansion
- 2× M.2 PCIe 4.0; 2 TB in the large tier
- Networking
- 2× 10GbE, Wi-Fi 7
- USB
- 2× USB4 v2 and 2× USB4
- Size / power
- 8.74 × 8.11 × 3.03 in; internal 320 W PSU
Practical decision
MS-S1 Max or a flatter mini PC?
| Priority | MS-S1 Max | Conventional mini PC |
|---|---|---|
| 10GbE and multiple clients | two 10GbE ports included | 2.5GbE or 10GbE depending on model |
| PCIe expansion | internal x16 slot, electrical x4 | usually no internal add-in card |
| Placement | desktop or 2U rack concept | smaller and lighter on a desk |
| Power supply | internal, 320 W | often an external adapter |
| RAM upgrade | not possible | also usually unavailable on Strix Halo |
Before ordering
Five details must match
Memory tier
Choose the explicit 128 GB version for large models. A 64 GB unit cannot be upgraded later.
SSD and package
The selected configuration should state 2 TB, operating system, power cable, and included accessories.
PCIe bandwidth
The slot is mechanically x16 but electrically PCIe 4.0 x4. Match the add-in card, power needs, and physical clearance accordingly.
UMA and runtime
Verify maximum GPU allocation, BIOS version, and Radeon support in the application you intend to run.
Service and returns
For a high-cost configuration, compare the seller, return path, and warranty terms carefully.
Alternatives
More expansion or a smaller enclosure?
The MS-S1 Max fits a fixed server position with dual 10GbE, an internal power supply, and a PCIe slot. The EVO-X2 and GTR9 Pro need less desk space and emphasize different storage and networking priorities.