8GB, DDR4, 2400 MHZ, 1.2 V, CL17
8GB, DDR3, 1600MHz, UDIMM
Lenovo 57Y6583 Compatible 2GB DDR3-1333MHz Unbuffered Dual Rank 1.5V 204-pin CL9 SODIMM
Lenovo 0B47377 Compatible Factory Original 4GB DDR3-1600MHz Unbuffered ECC Dual Rank x8 1.5V 240-pin
Add-On Computer Peripherals (ACP) AM1600D3DR8RN/4G, 4 GB, 1 x 4 GB, DDR3, 1600 MHz, 240-pin DIMM
Cisco MEM-FD4G Compatible 4GB Factory Original Flash Upgrade
