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Four green 204-pin DDR3 SODIMM modules in a row

Computer Memory Solutions

Computer Memory Solutions 16GB (4x4GB) DDR3 1333MHz SODIMM for iMac 21.5 MC812E/A

SKU CH-5V6A-A0H7S

16 GB kit of four 4 GB DDR3 1333 MHz SODIMM modules for 21.5-inch iMac MC812E/A

  • Total capacity16 GB (4 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 16 GB kit boosts iMac 21.5 performance
  • Four 4 GB DDR3 1333 modules fill all slots
  • CL7 timing at 1.5 V for responsive operation
  • Unbuffered non-ECC SO-DIMM matches Apple specification
  • Compatible with MC812E/A and listed iMac models

16GB DDR3 Kit for iMac 21.5 MC812E/A

This 16GB kit contains four 4GB DDR3 1333MHz SODIMM modules built for the Apple iMac 21.5-inch 2.5GHz Intel Core i5 model MC812E/A. It uses 204-pin unbuffered non-ECC memory running at 1.5V with CL7 timing. The kit fills all four memory slots in the compatible iMac.

DDR3 1333MHz speed and four-slot limit

The iMac 21.5-inch MC812E/A supports a maximum of 16GB across its four SODIMM slots. DDR3 1333MHz (PC3-10600) is the rated speed for this platform; faster DDR3 modules will downclock to this frequency. This kit provides the full supported capacity for that system.

16GB total capacity across four modules

The single specification that determines fit is the 16GB total capacity matched to the four-slot limit of the MC812E/A. Buyers who want more storage cannot add modules beyond the four installed here. Systems requiring ECC or registered memory are not compatible with this unbuffered non-ECC kit.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $72.99
Cheaper than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (4 × 4 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $4.56 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126410600SODRH
Total capacity16 GB (4 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Imac 21.5 in 2.5 GHz Intel Core I5 (Mc812E/A)
In the box
Included items4 Memory RAM Sticks

Questions about this item

Should I pick the 16GB kit or a smaller capacity for my iMac 21.5 MC812E/A?

The iMac 21.5 MC812E/A supports a maximum of 16GB across four sockets, so this 4 x 4GB kit fills every slot and reaches the limit.

What does the 1333MHz rating deliver inside the iMac 21.5 MC812E/A?

The modules run at 1333 MHz (PC3-10600) with CL7 timing and 1.5V, matching the iMac's native memory speed for full bandwidth without downclocking.

How does the 204-pin DDR3 SO-DIMM interface limit upgrade options?

The 204-pin DDR3 SO-DIMM form factor fits only compatible DDR3 laptop and all-in-one slots; it cannot be used in desktop DIMM sockets.

More in Model-Specific Memory Upgrades

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