OWC 16GB DDR4 2666 ECC RDIMM Lenovo ThinkAgile HX7520 HX7521 HX7820 HX7821 NX2320 memory upgrade

System-specific ECC RDIMM for Lenovo ThinkAgile

This 16GB DDR4 2666 CL19 registered DIMM is built for Lenovo ThinkAgile HX7520, HX7521, HX7820, HX7821 and NX2320 servers running Xeon SP Gen 1 processors. It delivers error-correcting, buffered memory for workloads that require data integrity and sustained uptime. The module operates at 1.2V and conforms to the PC4-21300 standard.

Compatibility checks before ordering

Verify that your ThinkAgile chassis lists one of the five supported model numbers and that the memory slots accept 288-pin registered ECC RDIMMs. This memory cannot be mixed with unbuffered DIMMs and will not function in standard desktop or consumer platforms. Confirm the system firmware is current enough to recognise 2Rx8 16GB modules at 2666MHz.

Replaces Lenovo 01AG618 4X70P98202 7X77A01303

The module directly replaces Lenovo part numbers 01AG618, 4X70P98202 and 7X77A01303. It is a worthwhile jump when expanding capacity beyond the factory configuration or when refreshing older 2133MHz and 2400MHz DIMMs to a uniform 2666MHz speed across all channels. Builders who need unbuffered memory or higher-density modules should look elsewhere.