Capacity: 4GB DDR2 RAM 
DDR Memory Type: DDR2 
No. of Pins: 240 Pin LONG DIMM 
Module Type: LONG DIMM
Function: Non ECC Memory

Chip: ETT original chips

* 240-pin socket type dual in line memory module (DIMM)
* 1.8V power supply 
* Data rate: 533/667/800Mbps (max.)
* 1.8Vpower supply for DDR II products
* Double-data-rate architecture, two data transfers per clock cycle
* Bi-directional, differential data strobe (DQS) is transmitted/received with data, to be used in capturing    data at the receiver
* Four internal banks for concurrent operation (component)
* Data mask(DM) for write data
*Auto precharge option for each burst access
* Programmable burst length: 2, 4, 8
* Programmable/CAS latency (CL): 3
* Programmable output driver strength: normal/weak
* Refresh cycles: (8192 refresh cycles/64ms)
* 2 variations of refresh
* Auto refresh Self refresh