DDR2 Memory Modules

DDR2 increases the data transfer rate by a factor of 2 as compared to DDR. It has 240 pins on PCB (120 on each side)
Memory name
Latency (ns)
Read (MB/s)
Write (MB/s)
Price
321
51
4,246.9
1,839.1
NA
322
87
2,266.2
1,327.5
NA
324
53
4,373.3
2,274.2
$34.05 USD (2021-05-31)
331
51
5,126.9
2,598.1
$46.27 USD (2021-01-31)
340
58
4,741.8
2,596.3
$30.99 USD (2016-06-29)