Proline - DDR3 - module - 8 GB - DIMM 240-pin - 1866 MHz / PC3-14900 - unbu

This Apple Computer MF621G/A compatible 8GB DDR3-1866MHz dual rank unbuffered ECC 1.5V 240-pin CL13 factory original UDIMM is 100% guaranteed to be compatible with your system and to work right the first time. All of our server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung, Micron, or Hynix). Our products are also guaranteed by federal law to not affect or void OEM warranties.