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Green printed circuit board with black memory chips and gold edge connector

Timetec

Timetec MR-H16D424S7E 16GB DDR4 2400 CL17 SODIMM laptop RAM

SKU CH-CSEC-AFMPD

A 16 GB DDR4 2400 CL17 SODIMM module built with Hynix ICs for 2017 iMac 21.5-inch and 27-inch Retina models

  • Capacity16GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.20V
  • ECCNo

Capacity 16GB

  • 16 GB capacity boosts multitasking headroom for demanding workloads
  • DDR4 2400 speed delivers 19200 MB/s bandwidth for responsive performance
  • CL17 latency keeps data access quick and consistent
  • 2 V operation reduces power draw and heat in tight chassis
  • 260-pin SODIMM form factor fits 2017 iMac 21.5" and 27" Retina models

What this module is

This is a 16GB DDR4 SODIMM rated at 2400MHz with CL17 latency and 1.2V operation. It uses Hynix ICs and an unbuffered non-ECC design built for 260-pin laptop slots. The module measures 30mm by 69.6mm and is intended for memory upgrades in compatible Apple iMac models from 2017.

Check before ordering

Verify that your iMac is a 21.5-inch or 27-inch Mid 2017 model listed in the compatibility data, such as iMac 18,1, 18,2 or 18,3 with part numbers like MMQA2LL/A, MNDY2LL/A or MNE92LL/A. Confirm the system accepts DDR4 2400 SO-DIMMs and that you have a free slot, because the 21.5-inch Retina 4K models support a maximum of 32GB total capacity.

Thermals and power

Operating at 1.2V keeps power draw low and heat output minimal inside the compact all-in-one chassis. The module runs at standard JEDEC voltage without overclocking, so it does not add noticeable thermal load or require active cooling beyond the iMac's existing airflow design. Unbuffered non-ECC operation contributes to stable, quiet performance in daily workloads.

I korthet

  • 16 GB capacity boosts multitasking headroom for demanding workloads
  • DDR4 2400 speed delivers 19200 MB/s bandwidth for responsive performance
  • CL17 latency keeps data access quick and consistent
  • 2 V operation reduces power draw and heat in tight chassis
  • 260-pin SODIMM form factor fits 2017 iMac 21.5" and 27" Retina models

Specifikationer

BrandTimetec
ModelMR-H16D424S7E
Capacity16GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered

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Frågor om den här produkten

What comes inside the box and is anything else required?

The box contains a single 16GB DDR4 2400 CL17 SODIMM module. No extra parts or tools are needed for installation.

Which capacity version should I pick for a 2017 iMac 27-inch Retina 5K?

This 16GB module is listed as compatible; the system maximum is 32GB so two modules can be used.

What does the 2400MHz rating mean once the module is installed?

The memory will run at 2400MHz with CL17 latency at 1.2V, matching the iMac's DDR4 specification.

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