Crucial Ballistix Sport 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model BLS4CP8G3D1609DS1S00BEU Cas Latency: 9 Voltage: 1.5V Multi-channel Kit: Quad Channel Kit Timing: 9-9-9-24 Buffered/Registered: Unbuffered Heat Spreader: Yes Features: BLS4CP8G3D1609DS1S00 is a 32GB kit consisting of (4) 8GB DDR3 modules that operates at speeds up to 1600 MT/s and has a CL9 latency with extended timings of 9-9-9-24. It is Performance and is non-ECC. It conforms to the industry standard UDIMM layout of 240 pins and is compatible with computers that take DDR3 UDIMM memory.