You've outgrown the 1TB and 2TB bays, and your ThinkSystem needs more headroom without a full chassis upgrade. This is the OEM Lenovo 3.5-inch 4TB drive: 7,200 RPM, SAS 12Gb/s, 512e sector format, v2. It slots into the standard hot-swap tray, the controller recognises it, and your array rebuilds or expands without you chasing part numbers across three vendor sites. Add to cart — one's on the shelf right now
| brand | Lenovo ISG |
| form_factor | 3.5 inch |
| capacity | 4TB |
| rpm | 7200 |
| interface | SAS 12Gb/s |
| hot_swap | 1 |
| sector_format | 512e |
| revision | v2 |