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Green circuit board with eight black memory chips, no heat spreader, 288 gold pins along bottom edge

Computer Memory Solutions

Computer Memory Solutions CM1024642666DIMM 8GB DDR4 2666 CL19 1.2V DIMM memory upgrade

SKU CH-4S3A-AQ055

8GB DDR4 2666 CL19 DIMM validated for ASRock A320, B360 and Fatal1ty X470/Z370 boards

  • Capacity8GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 8 GB capacity adds responsive multitasking headroom
  • DDR4 2666 speed moves data at PC4 21300 rates
  • CL19 timing keeps latency low at 1.2 V
  • Validated for ASRock A320M-DVS R4.0, B360M-HDV, B360M-ITX/ac, Fatal1ty X470 Gaming-ITX/ac, Fatal1ty Z370 Gaming-ITX
  • Single 288-pin DIMM fits straight into an empty slot

8GB DDR4 2666 DIMM for ASRock boards

This 8 GB DDR4-2666 module is built for the listed ASRock motherboards. It suits owners of an A320M-DVS R4.0, B360M-HDV, B360M-ITX/ac, Fatal1ty X470 Gaming-ITX/ac or Fatal1ty Z370 Gaming-ITX who want a straightforward capacity increase. The single stick delivers 8 GB at 1.2 V with CL19 timings. Buyers needing ECC or registered memory should look elsewhere.

Check motherboard model and free slots

Confirm your exact board model matches one of the five names above before ordering. The platform supports a maximum of 32 GB across two DIMM slots, so verify how many slots are already occupied. A 64-bit operating system is required to address more than 4 GB of memory. All installed modules will run at the speed of the slowest stick or the CPU limit.

Single stick enables dual-channel when paired

The package contains one 288-pin unbuffered DIMM without a heat spreader. Adding a second identical stick lets the board run in dual-channel mode for higher bandwidth. Mixing brands is possible but every module will drop to the lowest common speed and timing. The manufacturer backs the module with a limited lifetime warranty against defects.

Points forts

  • 8 GB capacity adds responsive multitasking headroom
  • DDR4 2666 speed moves data at PC4 21300 rates
  • CL19 timing keeps latency low at 1.2 V
  • Validated for ASRock A320M-DVS R4.0, B360M-HDV, B360M-ITX/ac, Fatal1ty X470 Gaming-ITX/ac, Fatal1ty Z370 Gaming-ITX
  • Single 288-pin DIMM fits straight into an empty slot

Caractéristiques

BrandComputer Memory Solutions
ModelCM1024642666DIMM
Capacity8GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemASRock Motherboard A320M-DVS R4.0, B360M-HDV, B360M-ITX/ac, Fatal1ty X470 Gaming-ITX/ac, Fatal1ty Z370 Gaming-ITX
Package Content1Memory Ram Stick

Questions sur cet article

Does the CM1024642666DIMM package include anything besides the 8GB DDR4 2666 CL19 1.2V 288-pin DIMM stick?

The box contains one 8GB DDR4 2666 CL19 1.2V unbuffered DIMM module only; no extra cables, screws or heat spreaders are supplied.

My ASRock B360M-HDV has two slots and supports 32GB maximum — should I buy one 8GB stick or two?

For dual-channel bandwidth on the B360M-HDV, install two identical 8GB sticks; a single stick works but runs in single-channel mode.

The module is rated DDR4 2666 (PC4 21300) CL19 — what speed will it actually run at in my Fatal1ty X470 Gaming-ITX/ac?

It will operate at 2666 MHz CL19 provided the CPU memory controller supports that frequency; otherwise it downclocks to the highest speed the processor allows.

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