2 x 4GB (8GB Total) Hynix HMT351U6EFR8C-PB 4GB PC3-12800U Desktop Memory

MEMORY TYPE: DDR3 SDRAM; CAPACITY: 4GB EACH; PINS:240 PIN BUS TYPE: PC-12800; ERROR CORRECTION: NON-ECC CAS: CL11; DATA TRANSFER RATE: 1600MHZ MEMORY CLOCK: 200MHZ; CYCLE TIME: 1.5NS RANK: RANK 2; VOLTAGE: 1.5