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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

  • Capacity16GB (4 x 4GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 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.

Highlights

  • 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

Specifications

BrandComputer Memory Solutions
ModelCM5126410600SODRH
Capacity16GB (4 x 4GB)
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Imac 21.5-Inch 2.5Ghz Intel Core I5 (Mc812E/A)
Package Content4 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.

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