APPLE MF495G/A COMP 16GB DDR3-1600MHZ 1.35V DRX8 SODIMMAddOn 16 GB DDR3 SDRAM Memory Module 16 GB (1 x 16GB) DDR3 1600 PC3 12800 DDR3 SDRAM 1600 MHz Dual rank Memory CL11 1. 35 V Non ECC Unbuffered 204 pin SoDIMM Lifetime Warranty VPN: MF495G A AA SKU: RSC608676 UPC: 195285041111 SoDIMM 16 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 1600 MHz memory speed with Unbuffered signal and CL11 latency for great multitasking capability 204 pin pin