For sale: a matched set of 4x SK Hynix 16GB DDR4 ECC Registered DIMMs (64GB total), pulled from a working server that was recently decommissioned/upgraded. All modules tested and confirmed working prior to removal.

Specs (per module):

Capacity: 16GB each — 64GB total for the set of 4

Type: DDR4 ECC RDIMM (Registered DIMM)

Speed: PC4-2666V (2666MHz)

Rank/Width: 1Rx4

Part Number: HMA82GR7AFR4N-VK

Model Code: B3 AC

CAS Latency: CL19

Manufacturer: SK Hynix (Korea)

Compatibility:

These are server-grade ECC Registered DIMMs. They require a motherboard with RDIMM ECC support — typically found in servers and workstations (e.g., Intel Xeon platforms). They are NOT compatible with standard consumer desktop motherboards (Ryzen/Core i3-i9 gaming/office boards).