4 gb of ddr2 800mhz cl6 patriot 2x2gb kit

The memory brings quality, reliability and adequate performance. Model meets industry standards and provides a smooth upgrade. Key Specifications: PC2-6400 (800MHz) Dual Data Rate 240-pin dual in-line memory module Non-ECC Unbuffered 2 Rank Module 7.8US update interval (8192 CYCLES/64ms) Power requirements 1.9 V Features: kit 2 x 2 GB auto-refresh capability PCB height: about 18 mm Serial Presence-Detect (SPD) 100% tested in accordance with RoHS given the limitations of chipset,