Great value DDR2 for desktops and notebooks: U-DIMM/SO-DIMM ADATA 800MHz/667MHz DDR2 memory is available in U-DIMM and SO-DIMM form factors, accommodating desktops and notebooks. Modules deliver double data rate SDRAM bolstered by FBGA (Fine-pitch Ball Grid Array) packaging on a 240-pin/204-pin (U-DIMM/SO-DIMM) glass-epoxy printed circuit board. Running at 1.8V and 800MHz, transmission bandwidth reaches 6,400MB/s in the PC2-6400 specification. With 667MHz clocks, transmission bandwidth goes up to 5,300MB/s in the PC2-5300 specification. Features High speed up to 800MHz Transfer bandwidths up to 6.4GB/s 6-layer PCB provides improved signal transfer and system stability U-DIMM SO-DIMM Specifications Type DDR2 800 U-DIMM DDR2 667 U-DIMM DDR2 667 SO-DIMM DDR2 800 SO-DIMM Form factor Standard Standard Standard Standard Suitable for Desktop Desktop Notebook Notebook Interface 240-pin 240-pin 200-pin 200-pin Capacity 1GB/2GB 1GB/2GB 1GB/2GB 1GB/2GB Rank Single / Dual Single / Dual Single / Dual Single / Dual Speed 800MHz 667MHz 800MHz 667MHz VDD voltage 1.8V CAS latency CL5 Auto-refresh / self-refresh Refresh Operating temperature 0°C-85°C Yes RoHS Standard JEDEC Warranty Limited lifetime warranty Ordering Information Product Capacity Rank Voltage Data rate Speed CL Part number DDR2 800 U-DIMM 1GB Single 1.8V 800MT/s PC2-6400 CL = 5 AD2U800B1G5 2GB Dual 1.8V 800MT/s PC2-6400 CL = 5 AD2U800B2G5 DDR2 667 U-DIMM 1GB Single 1.8V 667MT/s PC2-5300 CL = 5 AD2U667B1G5 2GB Dual 1.8V 667MT/s PC2-5300 CL = 5 AD2U667B2G5 DDR2 800 SO-DIMM 1GB Single 1.8V 800MT/s PC2-6400 CL = 5 AD2S800B1G5 2GB Dual 1.8V 800MT/s PC2-6400 CL = 5 AD2S800B2G5 DDR2 667 SO-DIMM 1GB Single 1.8V 667MT/s PC2-5300 CL = 5 AD2S667B1G5 2GB Dual 1.8V 667MT/s PC2-5300 CL = 5 AD2S667B2G5