Product Descrtion:- Ram Brand: Faspeed- Model: Laptop /4 SO-DIMM- Capacity: 4GB/8GB (/4)- Memory Speed:- -1600MHz (PC3-12800)- 4-2666MHz (PC4-21300)- CAS Latency:- 1600MHz = CL11- 2666MHz = CL19- Interface Pins (Laptop):- = 204-pin- 4 = 260-pin- Voltage:- = 1.5V- 4 = 1.2V- set Brands: HY, SEC, MIC, ELP, and more- Memory : Dual - Features: Unered- Function: Non-ECC- Ram Brand: Faspeed- Warranty: 3 yearsWe the Sanxing Hynix magnesium large brand particles to ensure the excellent quality and reliability of our RAM s, ensuring exceptional quality and reliability in our RAM s.Please Note:- Product images display various colors for reference only. The actual product based on availability.- To e the right choice, please select the memory module that matches your computer's specifications. If you have any questions, feel free to email us, and we will provide you with the best services and products.- Prior to installation, ensure that both the RAM and slot are clean to prevent dust aculation, which may lead to poor contact between the RAM and the slot.- Please be aware that the RAM modules may come with either 8 or 16 s, and the selection will be made ly during shping.