The IBM memory module is a 4GB option that is designed for servers and other enterprise-level applications. It is a DDR3 memory module with a speed of 1333MHz and a CL9 latency, which makes it suitable for use in applications that require reliable performance. It is an ECC registered memory module, which provides improved memory reliability and system stability. This memory module has a 240-pin DIMM form factor and a low voltage of 1.35V, which makes it energy efficient and ideal for use in environments where power consumption is a concern. Its very low profile (VLP) dual rank design makes it compatible with systems that have limited physical space. This IBM memory module is an excellent choice for users looking to upgrade their server’s memory or enhance their system’s performance with a reliable memory module.