A-Tech 4GB DDR4 2133 ECC UDIMM 1Rx8 for IBM-Lenovo 46W0808 46W0809 4X70G88315 4X70K14183 server RAM

4 GB DDR4 2133 ECC UDIMM module

This 4 GB DDR4 2133 MHz ECC unbuffered DIMM uses a single-rank 1Rx8 organisation and runs at 1.20 V with CL15 latency. It is built with major-brand chips and carries a 288-pin form factor for server and workstation platforms. The module is validated as a direct replacement for IBM-Lenovo part numbers 46W0808, 46W0809, 4X70G88315 and 4X70K14183.

Suited for ECC-capable servers needing

This module fits systems that accept DDR4 ECC UDIMMs at 2133 MHz and require only 4 GB per slot. It is not for builds that need registered or load-reduced memory, higher densities per module, faster DDR4 speeds or non-ECC consumer DIMMs. Buyers whose platforms demand RDIMM, LRDIMM or capacities above 4 GB should look elsewhere.

Steady throughput under continuous server workloads

ECC circuitry corrects single-bit errors on the fly, preventing data corruption during long-running compute or virtualisation tasks. The 1.20 V standard voltage keeps power draw predictable when all slots are populated. Unbuffered topology adds minimal latency, so sustained bandwidth remains consistent without the registration delay of RDIMMs.