OWC 16GB Kit (2 X 8GB) PC3-10600 DDR3-1333MHz ECC Registered CL9 240-Pin DIMM Dual Rank Memory. The OWC1333D3W8M16K is a 16GB memory kit from OWC, consisting of two 8GB PC3-10600 DDR3-1333MHz ECC Registered CL9 240-Pin DIMM Dual Rank modules. This kit is designed for high performance and reliability in server and workstation environments, featuring Error-Correcting Code (ECC) to ensure data integrity and minimize system crashes. With a speed of 1333MHz and a CAS latency of 9, it provides efficient and stable performance for demanding applications.