The 413015-B21 is a DDR2 module produced by HP, designed to upgrade the memory capacity in servers and workstations. With its fully-buffered (FBDIMM) design and 240 pins, this module ensures a stable and reliable communication with the motherboard, thanks to its advanced memory buffer. It operates at a speed of DDR2-667, providing a balance between performance and power consumption. The module's capacity of 16GB, comprised of 2048Mx72 configuration, makes it an excellent choice for systems requiring a significant memory upgrade to handle complex tasks and improve multitasking capabilities. HP's emphasis on quality and compatibility makes this module a safe and efficient solution for enhancing system performance.