The Connect Tech UAGX2U - Inference Server has the most M.2 slots among the Edge AI Servers — 12 M.2 slots, by a wide margin over every other edge AI server in the catalog. connecttec...connecttech.com ↗“io.m2_slot_count=12”
It's a 1U rackmount Jetson AGX Orin inference server (AGX Orin 64GB, 275 TOPS, 64 GB memory, 10GbE) from Connect Tech's Inference Server line. connecttec...connecttech.com ↗“Connect Tech Jetson inference server (AGX Orin); rackmount edge AI”
The runners-up within the Edge AI Servers family:
| Product | M.2 slots | Notes |
|---|---|---|
| UAGX2U - Inference Server (Connect Tech) | 12 | Jetson AGX Orin 64GB, 275 TOPS, 1U rackmount, 10GbE connecttec...connecttech.com ↗“io.m2_slot_count=12” |
| VPP6N0-S AGX (YUAN High-Tech) | 5 | AGX Orin, fanless; E-key 2230, 2x M-key 2280, M-key 3080, B-key 3042 yuan.com.twyuan.com.tw ↗“io.m2_slot_count=5” |
| VPP6N0-S AGX PSE (YUAN High-Tech) | 5 | AGX Orin, 8x PoE ports; E-key 2230, 2x M-key 2280, M-key 3080, B-key yuan.com.twyuan.com.tw ↗“io.m2_slot_count=5” |
| VPP6N0-S AGX 5G (YUAN High-Tech) | 4 | AGX Orin with 5G; E-key 2230, 2x M-key 2280, M-key 3080 yuan.com.twyuan.com.tw ↗“io.m2_slot_count=4” |
| AIR-427A (Advantech) | 3 | IGX Thor T7000, 128 GB; M-key, B-key, E-key advantech...advantech.com ↗“io.m2_slot_count=3” |
If maximizing M.2 for accelerators and SSDs is the goal, the UAGX2U is the clear pick — its 12 slots more than double the next-highest system. One caveat I could not resolve from the catalog: the UAGX2U's entry lists the slot count but not the individual M.2 key types, so the specific slot keying (M-key for SSDs vs. E-key/B-key for WiFi/cellular) isn't stated for it. The YUAN VPP6N0 series key types are listed as noted above if mixed keying matters to your design.