Lenovo IBM 8 GB DDR4 2133MHz RDIMM 1Rx4

High quality memory module type DDR4 from an experienced manufacturer IBM designed for efficient systems, servers and multiprocessor computers IBM brand. Supports ECC Registered with parity checking technology and has a capacity of 8 gigabytes ECC technology monitors transparently and in real-time integrity of data stored in memory. It is able to find and fix a bug in one bit and to detect a fault in two bits. Some memory controllers can, in cooperation with ECC memory repair the errors of greater magnitude. Most server boards require memory with ECC support. In cooperation with scrutiny parity memory achieves maximum control of data transferred. Parity consists in the fact that the word jednobytovému added auxiliary information (ie. Parity bit), and thanks to it can then verify the authenticity of transmitted data.

Memory has one individually addressable area (memory rank). Most of server chipsets has limited memory rank or directly specified memory configuration for each slot, so you need when buying a watch that figure with respect to future upgrades - if you reach the full rank of memory on the motherboard, you can not add another module, even if it remained free memory slots.