Lenovo ThinkSystem 64GB 2Rx4 DDR4-2933 RDIMM TruDDR4 Performance+ Memory

A 64GB module lets you reach large memory totals without using every slot. The Lenovo ThinkSystem 64GB 2Rx4 DDR4-2933 RDIMM, part number 4X77A12186, is a registered ECC DIMM at 1.2V with a data rate of 2933 MT/s.

It uses a two-rank layout with x4 chips, a design common among larger registered modules. Fewer, larger DIMMs leave slots free for later expansion, which helps in virtualization, in-memory databases and other jobs that depend on RAM capacity.

The TruDDR4 Performance+ name is the Lenovo line designation. When adding memory, keep module type, speed and rank layout consistent across the server, and consult the platform's population rules.

The module is offered refurbished, with 1 year or 3 years of warranty, and used, with 90 days. No new offer is listed. Request pricing and quantity, and tell us the server model so we can check that it is a suitable match.