The AL56M72A8BKK0S is a 2GB DDR2 800MHz ECC-Unbuffered registered dimm (Enhanced Clock Memory) module from ATP Electronics. It is a 204-pin double data rate 2 (DDR2) part made with 8 chips of TS512MSK64V6H. This module is equipped with a heat spreader, making it an ideal choice for use in high-end servers and workstations. As well, it is RoHS compliant, making it an environmentally friendly product.