The Cisco 15-12291-01 Hynix 8GB DDR3 HMT31GR7BFR4A-H9 PC3L-10600R 2Rx4 DIMM is a high-quality memory module specifically designed for servers and networking equipment. Manufactured by Hynix, a reputable brand in the memory industry, these DDR3 modules offer a capacity of 8GB per module with ECC (error correction code) and registered features for enhanced reliability and error handling. With a total of 288 pins, these modules are ideal for demanding computing environments that require fast and efficient memory performance. Made in the United States, these memory modules are a reliable choice for professional use.