Up for sale is a used SK Hynix 4GB 1Rx8 DDR3 1600MHz. It's been thoroughly tested using MemTest86 and is working 100%. Check out our eBay store for possibly other compatible components or check out the watermark in our eBay pictures.
Specs:
Model: HMT451U6AFR8C-PB
Unit Quantity: 1
Bus Speed: PC3-12800 (DDR3-1600)
Number of Pins: 240
Brand: SK Hynix
Number of Modules: 1
Form Factor: DIMM
Capacity per Module: 4 GB
Total Capacity: 4 GB
Type: DDR3 SDRAM