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Upgrade Designed For Apple iMac (21.5-inch, Late 2011)

Apple Order No.

MC978LL/A | 3.1GHz 2-Core Intel Core i3-2100
Apple Model No. A1311 (EMC 2428)
Apple Model ID iMac12,1
Max Possible Memory 16GB
Capacity 4GB (2 x 2GB)
Class DDR3
Speed PC3-10600
Frequency 1333MHz
ECC Type Non-ECC
DIMM Type 204-Pin SODIMM
Voltage 1.5V - Standard Voltage

About Us

A-Tech is one of the most trusted names in Premium Memory. Backed by a Lifetime Warranty and 5 star customer support, A-Tech has you covered! Memory upgrades have never been easier. Designed specifically to help your computer run faster and smoother, an A-Tech memory upgrade is one of the fastest, most affordable, and easiest ways to improve your system's performance. A-Tech memory empowers your computer to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. A-Tech modules are rigorously tested to ensure that your memory meets our stringent compatibility and performance standards. Every A-Tech RAM module is tested for complete functionality before it leaves our doors. Give your computer the best, trust A-Tech!