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EPIC SBC supports AMD® Embedded G-Series SoC · EPIC SBC supports AMD® Embedded G-Series SoC · Dual independent display support · 1.35V DDR3L 1600/1333 MHz SDRAM supports up to 8 GB · HD Audio supported by S/PDIF · Support IPMI 2.0 with iRIS-1010 module · COM, USB 3.0, SATA 6Gb/s PCIe Mini, mSATA and audio supported · IEI One Key Recovery solution allows you to create rapid OS backup and recovery · Single board computers, Industrial computers
Found this among "old startup leftovers", when it *should* be in the *keyboard* museum, even though it has no actual switches. The L3 Systems "Keyat" let you synthesize (and monitor) PS/2 Key Events via ASCII commands over the RS-232 interface. (You could also plug a keyboard into it, which would pass-through events.)
Why did we even have this lever? About 15 years ago, ipmi was still in its infancy (and DRAC was way too buggy to trust) so this was attached to a KVM switch which fed an entire rack of Dell 2650 servers. They were configured to "netboot but timeout and boot normally", so if you wanted to do a bare metal install, you prepped a tftboot image for that machine, rebooted it, and then waited delicately calibrated amounts of time and then hit a function key and then "magic word ENTER" via this device to boot our installer and then tell it you really wanted an install.
There was about a five year period where this was clever :-)