Specification: 8GB RAM | DDR4 | 260 pin DIMM | SO DIMM | 3200MHz PC4-25600-S | 1.2V The memory is 100% compatible with Asus M515UA-BQ066T. The memory has been tested and released to the device. The memory of the device Asus M515UA-BQ066T can be adjusted to max. 40 GB.