HP 4GB DDR3 1333 MHz ECC Unbuffered Dual Rank x8

Branded server memory module of type DDR3 unbuffered 4GB x4 chips with the organization. It is designed for advanced performance systems, servers and multiprocessor computers. Memory operates at frequencies up to 1333 MHz and has the ninth CAS timing controls ECC technology transparently and in real time integrity of the data stored in memory. It is able to find and fix an error in a single bit error and detect 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.
The advantage of memory are also two separately addressable areas called. Ranks Memory. The majority of server chipsets has limited memory rank or directly specified memory configuration for each slot, so you must follow when buying this 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 some remained free memory slots.
Memory modules with organizations chips "x8" are affordable, but do not support advanced server technologies such as multiple-bit error correction, Chipkill, memory scrubbing and Intel Single Device DataCorrection (SDDC), so they are ideal for "entry-level" servers.
Specifications:
Type:
DDR3 registered ECC
Capacity:
4 gigabytes
Certification:
PC3-10600
Max. Working frequency:
1333
Timing:
CAS 9
Memory rank:
Dual rank
Organization of chips:
x8