The HP 708633-B21 Memory Kit is designed to provide a significant boost in your HP server's memory capacity and performance. It includes a single 4GB DDR3 module that operates at a speed of 1866MHz (PC3-14900), ensuring a speedy and efficient processing of applications. This dual rank, Unbuffered (U) DIMM is an essential upgrade for HP servers requiring enhanced memory for more demanding tasks or for improving overall system responsiveness. Ideal for small to medium-sized businesses and enterprise applications, this memory kit improves multitasking capabilities and supports smoother operation of memory-intensive applications. The kit's compatibility with HP servers ensures easy installation and immediate performance gains, making it a smart choice for server upgrades or expansions.