03T7863-BN is an Lenovo compatible 32GB PC4-17000 DDR4-2133MHz 4Rx4 1.2V ECC LRDIMM, equivalent to Lenovo labeled PN#: 03T7863. Brute Networks modules are all major brand (Samsung, SK Hynix, or Micron). This module is guaranteed compatible with your server, as well as guaranteed to maintain your factory warranty, since Brute Networks modules are from the same manufacturers the OEM uses for their branded modules. Brute Networks memory is 100% tested and validated compatible. We provide the same OEM approved part at more than 60% off OEM pricing, helping thousands of businesses from coast to coast extend the life and maximize the performance of their existing infrastructure. All orders will be filled with identically matching modules, so no need to worry about mismatched memory you'd get from other sellers. All Brute Networks modules are guaranteed for life, and Brute offers a no-questions-asked 30 day return policy on every part. Trust Brute Networks for premium quality mission critical server memory upgrades.