Samsung 2GB (1x 2GB) DDR2-400 PC2-3200 1.8V DR x8 240-pin UDIMM RAM Module

SKU: M378T5663EH3-CF7

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Product Overview

This 2GB (1x 2GB) DDR2 400 MT/s Dual rank, x8 configuration RAM module from Samsung is for use in DDR2 compatible systems and operates at 400 MT/s with an overall transfer rate of PC2-3200.

This RAM module also operates at a standard voltage of 1.8V and is designed to allow you to run more applications simultaneously, switch between them faster, and provide a smoother computing experience.

Technical Specifications
Part No. M378T5663EH3-CF7
Capacity 2GB (1x 2GB)
Brand Samsung
Speed DDR2-400 - 400MT/s - PC2-3200
Voltage 1.8V
Technology DDR2
Error Correction Non-ECC
Signal Processing Unbuffered
Form Factor 240-pin UDIMM
Ranks Dual rank
Configuration 16-chip 128Mx8
Pieces in Kit 1


You can verify the compatibility of this RAM module in a number of ways:

  • Use the RamCity Finder to see all guaranteed compatible RAM upgrades for your brand and model system or motherboard
  • Search online to see if this product is on the QVL (Qualified Vendor List) for your system or motherboard
  • Contact one of our Upgrade Evangelists for an expert opinion

Why is the speed of this RAM module shown as 400 MT/s instead of 400 Mhz?

When it comes to measuring DDR RAM speed, MT/s and MHz are used interchangeably, which is not actually correct.

DDR stands for double data rate which means data is transfers on both the rising and falling edges of the clock signal. Meaning that the transfer rate is roughly twice the speed of the I/O bus clock. This RAM module runs at 200MHz per second, but the effective rate is 400 megatransfers per second (MT/s) because there are 200 million rising edges per second and 200 million falling edges per second of a clock signal running at 200 MHz.