The HP Agilent E9850A is a C-Size, 2-slot, message-based VXI embedded PC controller running Win NT 4.0 operating system. The HP Agilent E9850A can be embedded in various VXI mainframes including the E84XX series, E1401B or E1421B. The HP Agilent E9850A 450MHz Pentium II (or better) uses Intel "Slot 1" architecture that allows the processor to be upgraded in the field. Standard features include a 4.2 GB Ultra DMA 33 (or better) hard drive/disk, a 3.5 inch 1.44 MB floppy drive, and 64 MB RAM standard memory that can be expanded to 384 MB using standard SODIMMs in two free sockets.