3PCS 16GB 1333MHz ECC REGISTER LOW VOLTAGE Module Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS Compatible with Dell PowerEdge T320 Maximum Memory: 192GB Expansion: 6Sockets 4GB Reg ECC modules come in two versions: 313/4G using x4 and 3138/4G using x8 DRAM. The two parts may be installed in the same system but not within the same memory bank. Use like modules within a memory bank. This system supports either Unbuffered ECC, Registered ECC or Load Reduced memory. Mixing Unbuffered, Registered, or Load Reduced modules is not supported within this system. This system supports either Registered ECC or Unbuffered ECC memory. Mixing Registered ECC and Unbuffered ECC modules is not supported within this system. 4GB DDR3-1333 Reg ECC modules come in two versions: 313/4G using x4 and 3138/4G using x8 DRAM. The two parts may be installed in the same system but not within the same memory bank. Use like modules for dual and triple channel operation.