Product Overview
The Lenovo ThinkSystem 16GB TruDDR4 3200MHz (2Rx8 1.2V) RDIMM-A (Part# 4ZC7A15121) is an OEM-genuine server memory module engineered specifically for AMD processor-based Lenovo ThinkSystem servers. Designed and validated under Lenovo's TruDDR4 programme, this DIMM is sourced from Tier 1 DRAM suppliers and compatibility-tested on every supported ThinkSystem platform to maximise reliability and performance. Operating at 3200MHz (PC4-25600) with ECC Registered (RDIMM) technology and a low 1.2V supply voltage, this module delivers a strong balance of throughput, data integrity, and energy efficiency — making it an ideal upgrade for data centre, virtualisation, analytics, and HPC workloads.
Technical Specifications
| Part Number | 4ZC7A15121 |
| Feature Code | B5XD |
| Capacity | 16GB (1 x 16GB) |
| Memory Type | DDR4 ECC Registered (RDIMM-A) |
| Speed | 3200MHz (PC4-25600) |
| Rank / Organisation | Dual Rank (2Rx8) |
| Voltage | 1.2V |
| Form Factor | 288-Pin DIMM |
| ECC | Yes — Error Correcting Code |
| Target Platform | AMD EPYC processor-based servers |
| Compatible Systems | Lenovo ThinkSystem SR635, SR645, SR655, SR665 (and Gen 2 / V2 AMD variants); also supported in select ThinkSystem V3 platforms per ServerProven |
| Condition | Refurbished / Used — Tested & Cleaned |
| Warranty | 90-Day Seller Warranty |
Condition & Warranty Statement
This module is sold as professionally refurbished. Each unit has been fully tested for functionality, inspected for physical damage, and cleaned prior to despatch. All modules are verified to POST and operate at rated speed. A 90-day return-to-base warranty is included, covering defects in material and workmanship under normal server use. Buyers purchasing multiple units for large-scale deployments are encouraged to contact us for volume pricing. This is a genuine Lenovo OEM part — not a third-party compatible replacement.