I google "usb vendor id list", take the first hit to www (dot) linux-usb (dot) org (slash) usb.ids, scroll down to 0430:
0430 Sun Microsystems, Inc.
- 0002 109 Keyboard
0005 Type 6 Keyboard
000a 109 Japanese Keyboard
000b 109 Japanese Keyboard
0082 109 Japanese Keyboard
0083 109 Japanese Keyboard
so why is it so difficult for virtualbox to identify? It's not like this keyboard's info has changed in the last 10 years!