The product is a Crucial DDR4-2400 CL17 laptop RAM kit, consisting of two 8GB modules for a total capacity of 16GB. The SO-DIMM form factor and DDR4 SDRAM type make it suitable for various laptop models. With a bus speed of PC4-19200 (DDR4-2400), this RAM offers fast and efficient performance. Made in Malaysia, this RAM is a reliable and high-quality upgrade option for improving the speed and multitasking capabilities of a laptop. These are tested and working fine.