A-Tech 4GB DDR4 2133MHz ECC UDIMM 1Rx8 Server Memory 840820-001

Server DDR4 ECC UDIMM 4GB

This A-Tech module provides 4GB of DDR4 ECC unbuffered memory rated at 2133MHz with CL15 latency. It operates at the standard 1.20V and uses a 1Rx8 rank configuration on a 288-pin DIMM form factor. The part is a compatible replacement for HP 840820-001 and is intended for server or workstation systems that support unbuffered ECC DDR4 memory.

Verify DDR4 ECC unbuffered support

Before ordering, confirm that your motherboard or system accepts DDR4 unbuffered ECC UDIMMs at 2133MHz and 1.20V. Check the maximum supported capacity per slot and the total number of available 288-pin DIMM slots to ensure this 4GB module fits your configuration. Some platforms require registered ECC instead, so verify the memory type in your system documentation to avoid incompatibility.

Lifetime warranty and US tech support

The module ships with a lifetime warranty from A-Tech and includes access to United States based technical support before, during, and after purchase. All units undergo quality assurance testing for reliable operation in server environments. No additional software, cables, or mounting hardware are included with this memory module.