群晖RS4021xs+ specifications and procurement support from Kewentech.
| Brand | 群晖 Synology |
| Product Type | 机架式 NAS server |
| Model | RS4021xs+ |
| Drive Bays | 12 bays（3U，expandable to 36） |
| Processor | Intel Xeon D-1541 八核 2.1GHz |
| Memory | 16GB DDR4 ECC（expandable to 128GB） |
| Network Interface | 2× 10GbE |
| 硬盘支持 | 3.5/2.5-inch SATA ×12，M.2 NVMe 缓存 |