Long dim ddr2 4gb 667mhz RAM memory, 256mb*8, ETT original chips, work w/all motherboards, tested

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Basic Info

Payment Type:	T/T, Western Union or MoneyGram

Product Description

Capacities: 1GB/2GB/4GB

Memory type: DDR2

Number of pins: 240

Module type: long DIMM

Function: non-ECC memory

Data rates: 533, 667 or 800Mbps (maximum)

Double data rate architecture, two data transfers/clockcycle

Bi-directional, differential data strobe (DQS),transmitted/received with data, used in capturing data atreceiver

Data inputs and outputs are synchronized with DQS

DQS: edge aligned with data for read and center aligned withdata for write

With differential clock inputs (CK and CK)

DLL aligns DQ and DQS transitions with CK transitions

Commands entered on each positive CK edge: data and data maskreferenced to both edges of DQS

With 4 internal banks for concurrent operation (component)

Data mask (DM) for write data

Power supply: 1.8V

Auto pre-charge option for each burst access

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