1-Capacity: 8GB Frequency: 1333MHz Voltage: 1.35V Model: PJ16TFK512M8 Form Factor: SO-DIMM Pin Count: 204-Pin Bus Speed: PC3L-12800 CAS Latency: CL11 2-Capacity: 4GB (4GB).Memory Type: DDR4.Speed / Frequency: 2666MHz (2666MHz).