16GB ( 1x 16GB Module ) DDR4 2933 MHz ( PC4-23400 ) DDR4 DIMM ( 288-Pin ) ECC RDIMM ( Registered DIMM ) 1.2V - DDR4 Standard Voltage Compatible Equivalent for IBM-Lenovo 4ZC7A08708, 4X77A12184, 01KR354, 01PE862, 01AG631, 4X70V98061, 4ZC7A08741 High performance Memory RAM upgrade designed for Server/Workstation Systems All modules undergo quality assurance testing to ensure dependable and reliable performance Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase