The product is a set of 2 NetList 1GB DDR1 SDRAM DIMM memory modules, totaling 2GB of memory capacity. Each module has a capacity of 1GB and features ECC memory and registration. With a bus speed of PC-2100 (DDR-266) and 184 pins, these memory modules are suitable for server components in enterprise networking and server systems, providing reliable and high-performance memory solutions for computers and networking equipment.