4GB DDR3L-1333 SODIMM
4GB Module - DDR3 SO-DIMM - Non-ECC - Unbuffered - 1333MT/s - PC3L-10600 - 9ns CAS Latency - 1.35V - Lifetime Depot Carry-In Mfg. Warranty
4GB DDR4-2666 Non-ECC SO-DIMM
4GB Module - DDR4 SO-DIMM - Non-ECC - Unbuffered - 2666MT/s - PC4-21300 - 19ns CAS Latency - 1.2V - Lifetime Depot Carry-In Mfg. Warranty