The SK hynix HMA81GS6CJR8N-XN 8GB PC4-25600 DDR4-3200 SO-DIMM Memory is a single module of ECC memory designed for high-performance computing. With a total capacity of 8GB, this DDR4 SDRAM memory features a bus speed of PC4-25600 (DDR4-3200) and 260 pins for easy installation. The compact SO-DIMM form factor makes it ideal for use in laptops and other portable devices, while the low height of 0.75 inches ensures compatibility with various systems. The SK hynix brand ensures reliability and quality, making this memory module a great choice for upgrading your computer's memory capacity.