Solid performance and configurability Power through your day with a solution you can flexibly configure with an AMD Ryzen™ PRO Processor and options that include dual storage with RAID configuration M.2 PCIe NVMe SSDs discrete graphics and up to 64 GB of DDR4 memory. Expandable capability and capacity Configure the new space-saving design of the expandable HP ProDesk 405 SFF with two bays and two slots plus two additional M.2 slots and plenty of configurable ports. Built on a secure foundation HP Sure Sense uses advanced protection backed with deep-learning AI to help defend against never-before-seen threats. An intrusion sensor along with an integrated accessory cable lock help secure your cabled mouse and keyboard from theft. Tested and ready Rest easy with a reliable PC that goes the distance is designed to pass 120000 hours of HP Total Test Process and undergoes MIL-STD 810G testing. Help protect your SFF from dust ingress with an optional removable dust filter..