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Two green DDR4 DIMM modules, no heat spreaders, 288 pins each

SK hynix

SK hynix HMA81GU6JJR8N-VK 16GB (2x8GB) DDR4 2666 CL19

SKU CH-VQ01-XK2XB

16 GB dual-channel DDR4 kit with two 8 GB unbuffered DIMMs at 2666 MT/s and CL19 latency

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • Heat SpreaderNo
  • 16 GB dual-channel kit boosts multitasking headroom with two 8 GB modules
  • DDR4-2666 CL19 timing delivers responsive throughput at standard JEDEC speed
  • 2 V operation keeps power draw low for everyday desktop workloads
  • Unbuffered 288-pin DIMM form factor fits mainstream consumer motherboards
  • Manufactured in Korea by SK hynix for consistent component quality

SK hynix 16 GB DDR4 2666 Kit

This kit contains two unbuffered DIMMs that total 16 GB of DDR4 memory running at 2666 MT/s with CL19 timing. Each module is an 8 GB single-rank part built on a standard 288-pin form factor and operates at 1.2 V. The set is aimed at desktop builders who need a straightforward capacity upgrade for everyday workloads.

Check motherboard DDR4 slot count and maximum speed

Verify that your board has at least two free DDR4 DIMM slots and supports 2666 MT/s operation; slower boards will down-clock the modules automatically. The kit uses unbuffered non-ECC chips, so it requires a consumer desktop platform rather than a server or workstation board that demands registered or ECC memory. No heat spreaders are fitted, so ensure adequate airflow around the memory area.

Steady throughput at rated frequency and voltage

Under sustained load the modules maintain their 2666 MT/s data rate at the standard 1.2 V without requiring additional voltage headroom. The absence of a heat spreader means thermals depend on case airflow, but the low-voltage DDR4 design keeps power draw modest during extended sessions. CL19 latency remains consistent once the memory controller has trained the timings at boot.

商品特色

  • 16 GB dual-channel kit boosts multitasking headroom with two 8 GB modules
  • DDR4-2666 CL19 timing delivers responsive throughput at standard JEDEC speed
  • 2 V operation keeps power draw low for everyday desktop workloads
  • Unbuffered 288-pin DIMM form factor fits mainstream consumer motherboards
  • Manufactured in Korea by SK hynix for consistent component quality

商品規格

BrandHynix
SeriesDesktop Memory
ModelHMA81GU6JJR8N-VK
Capacity16GB (2 x 8GB)
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
ECCNo
Buffered/RegisteredUnbuffered
Heat SpreaderNo

商品問答

Does the HMA81GU6JJR8N-VK kit include anything beyond the two 8 GB DIMMs?

The kit contains only the two 288-pin DDR4 modules; no heat spreaders, cables or documentation are bundled.

Should I pick the 16 GB dual-channel kit or look for a single 16 GB stick?

Two 8 GB sticks running at 2666 MT/s CL19 give dual-channel bandwidth, which most desktop platforms use for higher throughput than a single module.

What does the 2666 MT/s rating mean once the RAM is installed?

The memory transfers data at 2666 million transfers per second with a CAS latency of 19 cycles at the standard 1.2 V operating voltage.

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