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Two green DDR3 SO-DIMM sticks with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR3-1333 SO-DIMM Mac iMac 21.5 2.5GHz

SKU CH-36KH-M3GTM

An 8 GB dual-channel kit of 1333 MHz DDR3 SO-DIMM modules built for 21.5-inch iMac models

  • Capacity8GB (2 x 4GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 8GB dual-channel kit boosts iMac responsiveness
  • DDR3-1333 CL7 timing matches factory spec
  • 204-pin SO-DIMM form factor fits 21.5-inch slot
  • Tested compatible with MC812K/A and MC812LL/A
  • Unbuffered non-ECC design installs without configuration

8GB DDR3 SO-DIMM kit for 21.5-inch iMac

This two-module kit delivers 8 GB of DDR3-1333 memory in 204-pin SO-DIMM form. It is built for the Apple iMac 21.5-inch 2.5 GHz Intel Core i5 (MC812K/A) and validated for matching models. The unbuffered, non-ECC modules run at 1.5 V with CL7 timing.

Capacity and headroom

The kit provides 8 GB across two slots, leaving two slots free on the four-socket platform. Apple formally supports 16 GB in this model, so the kit sits at the halfway mark with room to add another 8 GB later. The 1333 MHz speed matches the platform specification and will not exceed the memory controller limit.

What the bundle changes

Two matched 4 GB sticks enable dual-channel operation on the iMac's four-slot board. The matched pair avoids single-channel penalties and simplifies installation by filling one bank. No heat spreaders are included, keeping the low-profile SO-DIMM height compatible with the slim iMac chassis.

Puntos fuertes

  • 8GB dual-channel kit boosts iMac responsiveness
  • DDR3-1333 CL7 timing matches factory spec
  • 204-pin SO-DIMM form factor fits 21.5-inch slot
  • Tested compatible with MC812K/A and MC812LL/A
  • Unbuffered non-ECC design installs without configuration

Especificaciones

BrandComputer Memory Solutions
ModelCM5126410600SODRH
Capacity8GB (2 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 (Mc812K/A)
Package Content2 Memory RAM Sticks

Preguntas sobre este artículo

Will the 1333 MHz DDR3 SO-DIMMs work in the 21.5-inch iMac MC812K/A that currently has 10600 speed memory installed?

Yes, the kit is listed as compatible with the Apple iMac 21.5-inch 2.5 GHz Intel Core i5 MC812K/A and runs at DDR3-1333 PC3-10600 speed.

How can I verify the CL7 7-7-7 timing is active after installing the 204-pin modules?

Open System Report in macOS and check the Memory section; it will show each 4 GB module running at 1333 MHz with the stated timings.

Does the package contain only the two 4 GB SODIMM sticks or are tools or guides included?

The box contains the two memory RAM sticks only; no tools, brackets or printed guides are supplied.

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