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DDR2 Memory

DDR2 - Double data rate 2 - A new version of DDR which is twice as fast as original DDR.

DDR2 is the latest in high speed memory. These speeds are available: PC2-3200 (DDR2-400), PC2-4200 (DDR2-533), PC2-5300 (DDR2-667) Memory. Note: DDR2-xxx denotes data transfer rate, and describes raw DDR chips, whereas PC2-xxxx denotes theoretical bandwidth (though it is often rounded up or down), and is used to describe assembled DIMMs. Bandwidth is calculated by taking transfers per second and multiplying by eight. This is because DDR2 memory modules transfer data on a bus that is 64 data bits wide, and since a byte comprises 8 bits, this equates to 8 bytes of data per transfer. Some manufacturers label their DDR2 sticks as PC2-4300 instead of PC2-4200, and PC2-5400 instead of PC2-5300. At least one manufacturer has reported this reflects successful testing at a faster-than standard speed,[2] whilst others simply use the alternate rounding as the name, as described above.
Click on the item you are shopping for:
PC2-3200 DDR2-400 240-pin non-ECC UDIMM
(PC2-3200, DDR2-400, 240-pin, non-ECC, non-Registered DIMM)
PC2-3200 DDR2-400 240-pin ECC UDIMM
(PC2-3200, DDR2-400, 240-pin, ECC, non-Registered DIMM)
PC2-3200 DDR2-400 240-pin Registered ECC DIMM
(PC2-3200, DDR2-400, 240-pin, Single-Rank and Dual-Rank Registered ECC DIMM)
PC2-3200 DDR2-400 200-pin SODIMM
(PC2-3200, DDR2-400, 200-pin SODIMM)
PC2-4200 DDR2-533 240-pin non-ECC UDIMM
(PC2-4200, DDR2-533, 240-pin, non-ECC, non-Registered DIMM)
PC2-4200 DDR2-533 240-pin ECC UDIMM
(PC2-4200, DDR2-533, 240-pin, ECC, non-Registered DIMM)
PC2-4200 DDR2-533 200-pin SODIMM
(PC2-4200, DDR2-533, 200-pin SODIMM)
PC2-4200 DDR2-533 MicroDIMM
PC2-4200 DDR2-533 240-pin Registered ECC DIMM
(PC2-4200, DDR2-533, 240-pin, Registered ECC DIMM)
PC2-4200 DDR2-533 240-pin Fully Buffered ECC FBDIMM
(PC2-4200, DDR2-533, 240-pin, Fully Buffered ECC DIMM)
PC2-5300 DDR2-667 240-pin non-ECC UDIMM
(PC2-5300, DDR2-667, 667MHz, 240-pin, non-ECC, non-Registered DIMM)
PC2-5300 DDR2-667 240-pin ECC UDIMM
(PC2-5300, DDR2-667, 667MHz, 240-pin, ECC, non-Registered 240-pin DIMM)
PC2-5300 DDR2-667 240-pin ECC Registered DIMM
PC2-5300 DDR2-667 240-pin ECC Fully Buffered FBDIMM
(PC2-5300, DDR2-667, 240-pin, Fully Buffered ECC DIMM)
PC2-5300 DDR2-667 200-pin SODIMM
(PC2-5300, DDR2-667, 200-pin SODIMM)
PC2-5300 DDR2-667 214-pin MicroDIMM
PC2-6400 DDR2-800 240-pin non-ECC UDIMM
PC2-6400 DDR2-800 240-pin ECC UDIMM
PC2-6400 DDR2-800 240-pin Fully Buffered ECC FBDIMM
PC2-6400 DDR2-800 240-pin Registered ECC DIMM
PC2-6400 DDR2-800 200-pin SODIMM
PC2-8500 DDR2-1066 240-pin non-ECC UDIMM
Gaming Memory
DDR2 ECC Registered SODIMM
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