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Two green circuit boards with gold edge connectors and black memory chips

Computer Memory Solutions

Computer Memory Solutions CM1024642400DIMM 16GB DDR4 2400 memory upgrade

SKU CH-4B6S-J7CWG

16 GB dual-channel DDR4 2400 kit with CL17 timing and 1.2 V operation for compatible ASRock Z490 and server boards

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 16 GB dual-channel kit boosts multitasking headroom
  • 2400 MHz DDR4 speed matches platform specification
  • CL17 17-17-17 timings deliver responsive latency
  • 2 V operation keeps power draw low
  • Guaranteed compatible with ASRock Z490 Taichi, Z490M Pro4, Server 1U2LW-C242, Server 1U4LW-X470

16GB DDR4 kit for ASRock Z490 and server boards

This 16GB kit contains two 8GB DDR4 DIMMs rated at 2400MHz with CL17 timing. It is built for the ASRock Z490 Taichi, Z490M Pro4, Server 1U2LW-C242 and Server 1U4LW-X470 platforms. The modules are unbuffered, non-ECC and run at 1.2V.

DDR4 2400 speed ceiling and four-slot limit

The memory operates at DDR4 2400 (PC4 19200) and all installed modules will run at the speed of the slowest stick or the CPU capability. The supported platforms provide four DIMM sockets with a maximum system capacity of 128GB. A 64-bit operating system is required to address more than 4GB.

Unbuffered DIMMs without heat spreaders

Each 288-pin module uses a major brand chipset in a 2Rx8 configuration and has no heat spreader. This low-profile design eases installation in tight server chassis such as the 1U2LW-C242 and 1U4LW-X470. The kit is covered by a limited lifetime warranty from Computer Memory Solutions.

How it compares

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

Price $71.99
Cheaper than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 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 nameCM1024642400DIMM
Total capacity16 GB (2 × 8 GB)
Product type288-Pin DDR4 SDRAM
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 systemsASRock Motherboard Z490 Taichi, Z490M Pro4, Server 1U2LW-C242 (E3C242D4U), Server 1U4LW-X470
In the box
Included items2 Memory RAM Sticks

Questions about this item

Should I pick the 16GB 2x8GB kit or a different capacity for my Z490 Taichi?

The 16GB kit fills two of four slots with matched 8GB modules, leaving room to reach the 128GB maximum later while running in dual-channel mode from day one.

What does the DDR4 2400 CL17 rating deliver in my ASRock board?

At 2400 MHz with 17-17-17 timings and 1.2V, the modules operate at the board's native DDR4 2400 speed without manual tuning, giving stable dual-channel throughput for everyday workloads.

Is the 288-pin DDR4 interface on this kit limited by the Z490 chipset?

The unbuffered non-ECC DIMMs use the standard 288-pin DDR4 interface; on Z490 they run at the rated 2400 MT/s, and the chipset does not impose a lower ceiling for this specification.

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