XR-DIMM™ is a new rugged memory module standard for the embedded systems market. It is hosted by the Small Form Factors Special Interest Group. (SFF-SIG) In analogy to their SO-DIMM counterparts, the specification defines both unbuffered and registered versions, XR-UDIMM™ and XR-RDIMM™, respectively.. The module is not as wide as SO-DIMMs, allowing it to fit better on small processor boards and modules. The module can be secured with two screws to achive better shock and vibration resistance. Optional SATA pins allow Embedded PC manufacturers to reduce space consumed by connectors on their products.
There are various manufacturers of XR-DIMM™ modules, among them Swissbit and Samtec.
