A-Tech 16GB RAM for Dell PowerEdge T320, T420, T620 Tower Servers | DDR3 1600MHz ECC-RDIMM PC3L-12800 2Rx4 1.35V 240-Pin ECC Registered DIMM Server Memory Upgrade Module at Amazon.com
Lenovo thinkpad T420
16GB KIT (2 x 8GB) for IBM Lenovo ThinkPad T Series T420 T420i T420s T520 T520i. SO-DIMM DDR3 Non-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
Upgraded the twins today. T420 got 16gb ram and a sled battery. 9cell + sled = 17hrs battery life. T480 got an extra 16gb of ram, up to 32gb. Happy with the