Here's a list of all AVID audio peripherals that are approved for use with Pro Tools 9
Taken from the avid Knowledge Base:
http://avid.custkb.com/avid/app/selfservice/search.jsp?DocId=380563&cmpid=AV-SM-PT9-1Avid Audio Interfaces
Mac and Windows
003 Family
003
003 Rack
003 Rack+
Eleven Rack
Pro Tools Mbox Family
Pro Tools Mbox
Pro Tools Mbox Mini
Pro Tools Mbox Pro
Mbox 2 Family
Mbox 2
Mbox 2 Micro
Mbox 2 Mini
Mbox 2 Pro
Note: The original Mbox is not compatible with Pro Tools 9.
M-Audio Audio Interfaces
Mac and Windows
Audiophile 192
Audiophile 2496
Audiophile USB
Fast Track
Fast Track Pro
Fast Track Ultra
Fast Track Ultra 8R
Fast Track USB
FireWire 1814
FireWire 410
FireWire Audiophile
FireWire Solo
JamLab
KeyStudio 49i
M-Audio Black Box
M-Audio Ozone
MobilePre USB
NRV10
Ozonic
Producer USB Microphone*
ProFire 610
ProFire 2626
ProFire Lightbridge
ProjectMix I/O
ProKeys Sono 61
ProKeys Sono 88
Torq Conectiv
Torq Xponent
Transit
USB Micro**
* Included with the Avid Vocal Studio
** Included with the Avid KeyStudio
Windows Only (PCI cards, not compatible with PCIe slots)
Delta 1010
Delta 1010LT
Delta 44
Delta 66
Other Avid Peripherals
M-Audio MIDISport (all models)
MIDI I/O
Avid Control Surfaces
C|24
Control|24
Command|8
Euphonix Artist Series