The TS256MSK64V1U by Transcend is a DDR3 SO-DIMM memory module designed to upgrade the performance of portable computing devices, such as laptops. With a memory speed of 1066MHz and a total capacity of 2GB, it is structured to improve system responsiveness and facilitate multitasking abilities. Configured as 256Mx64, this memory module incorporates a double rank structure (2Rx8) with sixteen 128Mx8 chips, enhancing its reliability and performance in demanding applications. The 204-pin interface ensures compatibility with a wide variety of DDR3 SO-DIMM slots, making it a versatile choice for upgrading. Transcend, known for its commitment to quality and durability in the memory and storage market, manufactures the TS256MSK64V1U, ensuring users receive a product that can significantly boost their system's performance and longevity.