We will ship one of these brands Samsung, Hynix, Micron and Elpida. We never mix brands or part numbers for an order.

Specification
RAM type	DDR2 DIMM
Form factor	1.8 Volts, Proprietary Design
Storage capacity	8 GB (2 x 4 GB)
Technology	DDR2 DIMM
Access time	PC2-5300 / DDR2-667 MHz
Slot(s) required	2
Data integrity check	Fully Buffered, ECC
Performance	100% Compatibility Guaranteed
Warranty/Service / Support	Lifetime warranty