OWC 16GB DDR4 2666 PC4-21300 CL19 2Rx8 288-pin 1.2V ECC Registered RDIMM memory upgrade

OWC 16GB DDR4 ECC Registered RDIMM

This 16GB DDR4 2666 ECC Registered RDIMM is built for the QNAP TS-2888X NAS system. It delivers 16GB capacity at PC4-21300 speed with CL19 latency and 1.2V operation. The module uses a 2Rx8 rank configuration on a 288-pin form factor. It is not compatible with standard desktop computers or unbuffered memory.

Installing in the QNAP TS-2888X

Installation follows the standard DIMM slot procedure for the TS-2888X chassis. The registered design requires a compatible server or workstation platform; it will not function in consumer motherboards. A common error is attempting to mix this registered module with unbuffered memory, which prevents boot. Ensure all slots use matching ECC registered specifications.

Verify your NAS model and memory configuration

Confirm the unit is a QNAP TS-2888X before ordering, as this module is system-specific. Check existing installed memory to avoid mixing registered and unbuffered types. The module is backward compatible with 2133MHz and 2400MHz operation. Buyers needing non-ECC memory or desktop DIMMs should select a different product.