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Green circuit board with black memory chips and gold edge contacts

SK hynix

SK hynix HMA81GS6AFR8N-UH 8GB DDR4 2400MHz laptop RAM

SKU CH-2HMB-A21FB

8GB DDR4 SODIMM running at 2400MHz with CL17 latency and 1.2V operation for laptop upgrades

  • Capacity8GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.20V
  • ECCNo

Capacity 8GB

  • 8GB capacity adds responsive multitasking headroom
  • DDR4 2400MHz speed delivers 19200 MB/s bandwidth
  • CL17 latency keeps data access snappy
  • 20V operation reduces power draw and heat
  • 260-pin SO-DIMM fits standard laptop slots

SK hynix 8GB DDR4 2400MHz SODIMM

This SK hynix module adds 8GB of DDR4 memory to a compatible laptop. It runs at 2400MHz with CL17 latency and 1.20V operation. The unbuffered, non-ECC design suits mainstream notebook upgrades.

Check 260-pin DDR4 slot and voltage

Verify the notebook accepts 260-pin DDR4 SO-DIMM modules before ordering. The system must support 1.20V operation and PC4-19200 speed for correct function. Confirm an empty slot exists or plan to replace the existing stick.

Single-rank 260-pin build quality

The single-rank PCB uses 260 gold-plated edge contacts for reliable seating in the SODIMM socket. Low-profile height fits tight chassis clearance. Standard JEDEC pinout ensures straightforward installation without adapters.

Highlights

  • 8GB capacity adds responsive multitasking headroom
  • DDR4 2400MHz speed delivers 19200 MB/s bandwidth
  • CL17 latency keeps data access snappy
  • 20V operation reduces power draw and heat
  • 260-pin SO-DIMM fits standard laptop slots

Specifications

BrandHynix
ModelHMA81GS6AFR8N-UH
Capacity8GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the HMA81GS6AFR8N-UH module come alone or as a kit, and is any extra hardware needed?

The listing describes a Dual Channel Kit, so two 8 GB modules are included. No extra brackets, cables or heat spreaders are required for a standard 260-pin SODIMM slot.

Should I pick the CL17 2400 MHz version or a different speed grade for my laptop?

Choose this CL17 2400 MHz kit when your laptop’s memory controller is rated for DDR4 2400; a higher-speed module would simply down-clock to 2400 MHz, while a lower-speed one would limit peak bandwidth.

What does the 2400 MHz rating mean once the kit is installed in a laptop?

The memory bus runs at 300 MHz clock with a 2400 MT/s data rate, delivering a PC4 19200 peak transfer rate; actual throughput depends on the CPU’s integrated memory controller and the workload’s access pattern.

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