OWC 4GB DDR3 1333MHZ memory module

OWC 4GB DDR3 1333MHZ. Component for: PC/server, Internal memory: 4 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 204-pin SO-DIMM, CAS latency: 9
Manufacturer: OWC
SKU: 6849384
Manufacturer part number: OWC1333DDR3S4GB
$10.99
4.0GB PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Module for 2011 MacBook Pro(all sizes), Mid 2010/2011 21.5" & 27" iMac Models. Lifetime Warranty. (1333DDR3S4GB)
4.0GB PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Module for 2011 MacBook Pro(all sizes), Mid 2010/2011 21.5" & 27" iMac Models. Lifetime Warranty. (1333DDR3S4GB)