4X77A99751: Lenovo ThinkSystem 16GB TruDDR5 5600MHz (1Rx8) ECC UDIMM
Also listed as: C527
ThinkSystem 16GB TruDDR5 5600MHz (1Rx8) ECC UDIMM. Listed by Lenovo as a memory module for the ThinkSystem ST50 V3. The pairing comes from the vendor product guide, which also gives the quantity limits and any controller, firmware or slot requirements. Check those rules and the part number suffix before buying a used unit.
Specifications
| Part number | 4X77A99751 |
|---|---|
| Brand | Lenovo |
| Type | Memory |
| Other numbers | C527 |
| Capacity (GB) | 16 |
| Speed | DDR5 5600 |
| Vendor description | ThinkSystem 16GB TruDDR5 5600MHz (1Rx8) ECC UDIMM |
Fits these models
Check compatibility with Lenovo
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Lenovo has tested with the Lenovo 4X77A99751.
- Compatibility Lenovo ServerProven (options and OS compatibility)
- Specifications Lenovo Press product guides
- Support Lenovo Data Center Support
Buying or selling 4X77A99751?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Lenovo ThinkSystem ST50 V3 Server Product Guide, checked 2026-10-28