256MB PC133 SO-DIMM
256MB Module - SDR SO-DIMM - Non-ECC - Unbuffered - 133MT/s - PC133 - 2ns CAS Latency - 3.3V
4GB DDR4-2400 SODIMM
4GB Module - DDR4 SO-DIMM - Non-ECC - Unbuffered - 2400MT/s - PC4-19200 - 17ns CAS Latency - 1.2V - Lifetime Depot Carry-In Mfg. Warranty