OWC 1R6T31R4016P 16GB DDR3L 1600 ECC RDIMM 2x8GB 1.35V CL11 1Rx4 SuperServer

Kit identity

This kit provides 16GB of DDR3L ECC Registered memory in a matched pair of 8GB modules. It is built for Supermicro SuperServer platforms including the 2027PR, 2027R, 2027TR, 2028UT and 4027GR series. The registered design and ECC function target server and workstation workloads that demand data integrity. It will not operate in standard desktop systems or alongside unbuffered DIMMs.

Sustained behaviour

Each module runs at 1600MHz with CL11 timing at 1.35V, delivering PC3L-12800 bandwidth continuously. The registered buffer reduces electrical load on the memory controller, helping stability when all slots are populated. ECC correction operates on every cycle, preventing silent data corruption during long compute jobs or virtualisation tasks. The 1Rx4 organisation supports dense capacity per channel without increasing rank count.

Interface limits

The 240-pin DDR3L interface caps transfer rates at 1600MHz and requires a platform that accepts registered ECC DIMMs at 1.35V. Mixing with unbuffered memory is not supported and will prevent boot. Capacity expansion is bounded by the server model's maximum DIMM count and total memory limit. This kit replaces Supermicro part numbers MEMDR380LHL07ER16, MEMDR380LSL10ER16, MEMDR380LSL14ER16 and MEMDR380LSV04ER16.