1. RATOC REX-410U http://www.ratocsystems.com/products/subpage/410u.html
2. FreeBSD 4.7-STABLE #0: Mon Feb 3 06:57:20 JST 2003
3. uhub1: Texas Instruments General Purpose USB Hub, class 9/0, rev 1.10/1.00, addr 3
uhub1: 7 ports with 7 removable, self powered
ukbd0: Combo KVM Switch Combo KVM Switch, rev 1.10/1.00, addr 6, iclass 3/1
kbd1 at ukbd0
ums0: Combo KVM Switch Combo KVM Switch, rev 1.10/1.00, addr 6, iclass 3/1
ums0: 5 buttons and Z dir.
4. 4ポートUSBハブ&切替機能付KVMスイッチ。
5. PS/2・USBのKeyboard・マウス切替はとりあえず問題なし。
USBデバイスをあまり持ってないのでどんなUSBデバイスが切り替えられるかは検証できません。

usbdevs -v

port 2 addr 3: self powered, config 1, General Purpose USB Hub(0x2077), Texas Instruments(0x0451), rev 1.00
port 1 powered
port 2 powered
port 3 powered
port 4 powered
port 5 addr 6: low speed, power 100 mA, config 1, Combo KVM Switch(0x0004), Combo KVM Switch(0x06f2), rev 1.00
port 6 powered
port 7 powered