OWC OWC1333DDR3S04S memory module 4 GB 2 x 2 GB DDR3 1333 MHz

4.0GB (2x2.0GB Kit) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 Memory Upgrade Kit for early 2011 MacBook Pro models and Mid 2010 21.5" & 27" iMac Models, Mid 2011 Mac mini models.

Features
Internal memory:	4 GB
Memory layout (modules x size):	2 x 2 GB
Internal memory type:	DDR3
Memory clock speed:	1333 MHz
Component for:	Notebook
Memory form factor:	204-pin SO-DIMM
ECC:
Buffered memory type:	Unregistered (unbuffered)
CAS latency:	9
Memory channels:	Dual-channel
Memory voltage:	1.5 V
Module configuration:	256M x 64
Operational conditions
Operating temperature (T-T):	0 - 85 °C
Packaging data
Package type:	SO-DIMM