Description

Mac Pro 4,1 2009 4GB PC3-8500  Kingston Memory  RAM A1289

1066MHz DDR3 ECC SDRAM (Non Registered)

Note: You can not mix Registered and NON Registered memory in the Mac Pro. You either have one type or the other.

Compatible with
Mac Pro (Early 2009) 4,1 A1289

Part numbe- KTA-MP1066/4G