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Four green DDR4 SO-DIMM sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM1024642400SO 32GB (4x8GB) DDR4 2400 CL17 1.2V 260-Pin SO-DIMM memory upgrade

SKU CH-0WB8-XY0PK

32 GB kit of four DDR4 2400 SO-DIMM modules built for the 27-inch 2017 iMac

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 32 GB total capacity across four 8 GB modules
  • DDR4 2400 speed rated at PC4 19200 bandwidth
  • CL17 latency with 17-17-17 timing for responsive operation
  • 2 V low-voltage unbuffered SO-DIMM design
  • Built for Apple iMac 27-inch 5K Mid-2017 Core i5 3.8 GHz

Designed for Mid-2017 27-Inch iMac

This 32 GB kit contains four 8 GB DDR4 SO-DIMM modules built for the Apple iMac Core i5 3.8 27-Inch 5K Mid-2017. The memory runs at 2400 MHz with CL17 timings and operates at 1.2 V. It is unbuffered, non-ECC and uses a 260-pin layout that matches the factory slots.

Ideal for owners of the specified iMac model

The kit fills all four sockets to reach the 32 GB total and is validated for the MNED2LL/A system. It will not suit users who need ECC error correction or registered modules, nor those upgrading a different iMac year or a non-Apple platform. Builders requiring 64 GB maximum capacity should look elsewhere.

DDR4 2400 CL17 1.2 V 260-pin SO-DIMM

The decisive specification is the DDR4 2400 speed with CL17 latency at 1.2 volts in a 260-pin unbuffered SO-DIMM form factor. These electrical and physical parameters must match the iMac memory controller exactly or the system will not boot.

How it compares

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

Price $150.99
Cheaper than about 62% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $4.72 per GB
Cheaper than about 80% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642400SO
Total capacity32 GB (4 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple iMac Core i5 3.8 27 in 5K, Mid-2017 MNED2LL/A
In the box
Included items4 Memory RAM Sticks

Questions about this item

Should I choose the 32GB kit or add a smaller kit to reach the 64GB maximum?

The 32GB kit fills all four slots with 8GB modules. Adding more memory would require removing existing sticks, so choose the 32GB kit if you want a simple upgrade without wasting modules.

What does the 2400MHz speed deliver in the Mid-2017 iMac?

The memory runs at the iMac's native 2400MHz DDR4 rate, matching the system's maximum supported speed for full bandwidth without downclocking.

Does the 260-pin DDR4 SO-DIMM interface limit capacity per slot?

The 260-pin DDR4 SO-DIMM standard supports 8GB modules as used here; the iMac's four-slot design caps total memory at 64GB when all slots are populated.

More in Model-Specific Memory Upgrades

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