Supermicro SYS-421GE-TNRT
$8,000 – $15,000 (barebones)
Enterprise 4U GPU server supporting up to 8 double-width GPUs. The go-to chassis for building high-density AI training and inference rigs.
Specifications
| Form Factor | 4U Rackmount |
| GPU Slots | Up to 8 double-width |
| CPU | Dual Intel Xeon (5th Gen) |
| RAM | Up to 4TB DDR5 |
| Network | 2x 10GbE |
Pros
- Flexible GPU configuration
- Enterprise build quality
- Excellent airflow design
Cons
- Barebones — GPUs, CPU, RAM extra
- Requires technical assembly
- Significant rack space needed
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