SK hynix HMA81GS6CJR8N-VK_UB 8GB DDR4 SO-DIMM 2666MHz laptop memory accessory

8 GB DDR4 SO-DIMM for laptop upgrades

This 8 GB DDR4 SO-DIMM adds memory capacity to compatible laptops using 260-pin slots. It runs at 2666 MHz with a PC4-21300 bus and CL19 latency. The module operates at 1.2 V and uses a 1RX8 rank configuration without ECC. It suits owners who need more RAM for everyday multitasking.

Standard SO-DIMM build with 260-pin layout

The stick follows the common SO-DIMM form factor so it fits the usual laptop memory sockets. A 260-pin edge connector aligns with DDR4 slots found in many recent notebooks. Non-ECC operation means it works in consumer boards that do not support error correction. No extra cables or brackets are required for installation.

Replaces a smaller or slower DDR4 module

Swapping a 4 GB stick or a lower-frequency DDR4 unit for this 8 GB CL19 module raises total capacity and peak bandwidth. The jump is worth it when the system can address the extra gigabytes and the memory controller supports 2666 MHz. Buyers who need ECC, registered DIMMs, or capacities above 8 GB per slot should look elsewhere.