Apacer Memory DDR 512MB 400MHz ECC reg 0.5GB DDR 400MHz ECC memory module

Memory DDR 512MB 400MHz ECC reg DDR memory offers twice the data bandwidth of conventional PC100 or PC133 SDRAM, and is particularly well suited for high-performance servers and workstations, which need optimal CPU-memory performance. Double Data Rate (DDR) SDRAM is precisely what the name implies. A clock cycle can be represented as a square wave, with the rising edge defined as the transition from "0" to "1", and the falling edge as "1" to "0". In SDRAM, only one of these wave edges is used, but DDR SDRAM references both, effectively doubling the rate of data transmission.

Features:
-Backward compatible with DDR 266/DDR333/DDR400 MHz motherboards.
-Ensure system stability with the lowest MTFB feature.
-Perform Data Transfer Rate up to 2100 MB/s ;2700 MB/s;3200 MB/s;4000 MB/s.
-Stability and compatibility tests guarantee to full loading operation.