Crucial 8GB (1x 8GB) DDR2-667 PC2-5300 1.8V DR x4 ECC Fully Buffered 240-pin FB-DIMM RAM Module Model_Mac_Book_Pro_8_3 CT51272BF160B Capacity 4GB (1x 4GB)

CT51272BF160B Capacity 4GB (1x 4GB) Brand Crucial Speed DDR3L-1600 - 1600MT/s - PC3L-12800 Voltage 1

This 1GB (2x 512MB) DDR2 533 MT/s

Ramcity usually sells Crucial or Samsung original ram however they are no longer manufacturing DDR3 RAM

2xHMT451U6BFR8C-PB Capacity 8GB (2x 4GB) Brand Hynix Speed DDR3-1600 - 1600MT/s - PC3-12800 Voltage 1

Crucial 8GB (1x 8GB) DDR2-667 PC2-5300 1.8V DR x4 ECC Fully Buffered 240-pin FB-DIMM RAM Module Model_Mac_Book_Pro_8_3 CT51272BF160B Capacity 4GB (1x 4GB)Product Overview Dramatically improve performance and handle larger user and application workloads in your mission critical workstations and servers with this 8GB (1x 8GB) DDR2 667 MT s 240 pin FB DIMM RAM module from Crucial . This Dual rank, x4 configuration RAM module is for use in DDR2 compatible systems and operates at 667 MT s with an overall transfer rate of PC2 5300. This RAM module also operates at a standard voltage of 1. 8V and is designed