Crucial 8GB (1x 8GB) DDR3L-1866 PC3L-14900 1.35V / 1.5V DR x8 ECC Registered 240-pin RDIMM RAM Module Classification_ram-ddr3l-1600-eudimm-8gb-2x-dr-fm This RAM module runs at

This RAM module runs at 800MHz per second

2xCT25664AA800 Capacity 4GB (2x 2GB) Brand Crucial Speed DDR2-800 - 800MT/s - PC2-6400 Voltage 1

but the effective rate is 2400 megatransfers per second (MT/s) because there are 1200 million rising edges per second and 1200 million falling edges per second of a clock signal running at 1200 MHz

5V Technology DDR3 Error Correction ECC Signal Processing Registered Form Factor 240-pin RDIMM Ranks Quad rank Configuration x4 Pieces in Kit 2 Compatibility

This 2GB (2x 1GB) DDR 400 MT/s Dual rank

Crucial 8GB (1x 8GB) DDR3L-1866 PC3L-14900 1.35V / 1.5V DR x8 ECC Registered 240-pin RDIMM RAM Module Classification_ram-ddr3l-1600-eudimm-8gb-2x-dr-fm This RAM module runs atProduct Overview Dramatically improve performance and handle larger user and application workloads in your mission critical workstations and servers with this 8GB (1x 8GB) DDR3L 1866 MT s 240 pin RDIMM RAM module from Crucial . This Dual rank, x8 configuration RAM module is for use in DDR3L compatible systems and operates at 1866 MT s with an overall transfer rate of PC3L 14900. This RAM module also operates at a standard voltage of 1. 35V 1. 5V and