HM-5281A / HM-5282A
| Mode Name | HM-5281A | HM-5282A |
| Main Chip | Broadcom AtlasII PEX89144 | Broadcom AtlasII PEX89144 |
| Upstream Bandwidth | Gen5 x 16 ( 32 *16 = 512 GT/s ) | 2x Gen5 x 16 ( 2*32 *16 = 1024 GT/s ) |
| Surprise Hot Plug Support | Yes | Yes |
| Drive Type | 28* NVMe Gen5 M.2 SSD 2280 | 28* NVMe Gen5 M.2 SSD 2280 |
| Power | EPS 8 Pin | EPS 8 Pin |
| Supported OS | Windows, Windows Server, Linux | Windows, Windows Server, Linux |
| Capacity | 224TB / 8TB M.2 NVME SSD’s | 224TB / 8TB M.2 NVME SSD’s |
| Power Consumption | 400W | 400W |