Up to four 3200 MHz DDR4 ECC UDIMMs provide speed and capacity of up to 128 GB Three PCIe slots for I/O expansion, one of which has the new PCIe Gen4 interface to maximize I/O performance Support for a NVMe M.2 drive for OS boot operations Up to three non-hot-swap (NHS) drive bays, two 3.5-inch and one 2.5-inch, supporting hard disk drives (HDDs) or solid-state drives (SSDs) provide flexible internal storage capacity The use of SSDs instead of, or along with, traditional spinning drives (HDDs) can significantly improve I/O performance The Lenovo ThinkSystem ST50 V2 single-socket tower server is an entry level server ideal for small businesses, home offices, retail, educational institutions and branch offices. The server is based on the Intel Xeon E-2300 Series processors, formerly codenamed "Rocket Lake".This product guide provides essential presales information to understand the ThinkSystem ST50 V2 server, its key features and specifications, components and options, and configuration