The DELL DR397 memory module offers a reliable and cost-effective solution for enhancing the performance of older server systems. This 4GB DDR2 module operates at a speed of 667MHz, providing a timely and efficient way to handle data processing. The 2Rx4 configuration denotes a dual-rank module, offering balanced performance and stability. With a PC2-5300F interface, this fully-buffered DIMM ensures compatibility with a wide range of Dell servers that utilize DDR2 technology. Ideal for extending the life and capabilities of legacy systems, the DR397 module helps in improving multitasking and the overall smoothness of applications running on older hardware. Whether upgrading or replacing memory, this module is an excellent choice for keeping your server operational and efficient.