OWC 32GB (4x8GB) DDR4 2133MHz CL15 ECC Registered RDIMM 1.2V 288-pin Server RAM

Server-grade ECC RDIMM kit

This 32GB kit contains four 8GB DDR4 2133MHz modules built to the PC4-17000 standard with CL15 latency. Each stick is a 288-pin registered DIMM with on-die ECC and a 1Rx4 organisation, designed for servers, workstations and compatible NAS systems. The modules operate at 1.2V and carry no heat spreaders, relying on chassis airflow instead. They will not work in standard desktop platforms or alongside unbuffered memory.

JEDEC-compliant registered design

Registered signalling and ECC correction keep data integrity high in multi-socket environments while the 1.2V supply limits power draw per module. With no onboard heat spreaders, thermals depend entirely on case ventilation; typical server airflow keeps temperatures well within JEDEC limits. The CL15 timing at 2133MHz delivers predictable latency without elevated voltage, so acoustic impact is limited to the system fans already present in the chassis.

Sustained load stability

Under continuous workloads the registered buffer reduces electrical loading on the memory controller, allowing all four modules to populate dual-channel slots without signal degradation. ECC detects and corrects single-bit errors in real time, preventing silent data corruption during long compute runs. The 1Rx4 density maintains consistent bandwidth across extended sessions, and the 1.2V operation avoids thermal throttling that higher-voltage kits might exhibit in dense configurations.