The product is a lot of 2 RAMAXEL and 4 KINGSTON 4GB memory modules, totaling 6 modules with a total capacity of 24GB. The modules are DDR4 SDRAM with a bus speed of PC4-2666V and feature ECC memory for error correction. Each module has a capacity of 4GB and a lifetime manufacturer warranty. The units have a UDIMM form factor and 204 pins for compatibility with various memory slots. Ideal for upgrading or replacing memory modules in laptops or desktop computers, this lot offers reliable and high-quality RAM modules from reputable brands.