CANON

PX Transmitter (Master Devices):

• 550EX, 580EX, 580EXII, 600EX-RT (1)
• ST-E2 Master

PX Receiver (Slave Flashes):

• 420EX (2), 430EX, 430EXII, 550EX, 580EX, 580EXII, 600EX-RT (3)

NIKON​

PX Transmitter (Commanders):

• SB-700 (4), SB-800, SB-900 (4), SB-910(4)
• SU-800 Commander
  Camera bodies with built-in commanders:
• D80, D90, D200, D300, D600, D700, D800 (requires RadioPopper Nikon Pop-Up Adaptor)

PX Receiver (Remote Flashes):

• SB-600, SB-700 (5), SB-800, SB-900, SB-910 (6)

NISSIN​

PX Transmitter (Master Device):

• Di866 Mark II for Canon
• Di866 Mark II for Nikon7

PX Receiver (Remote Flash):

• Di866 Mark II for Canon (7)
• Di866 Mark II for Nikon (7)

QUANTUM​

PX Receiver (Remote Flash):

• Qflash T5d-R with the Qnexus attachment (8)

Notes:

1. The 600EX-RT is compatible in its optical mode only.
2. Velcro mounting is required for the 420EX in lieu of the mounting bracket.
3. When using the 600EX-RT as a slave flash, use the 580EXII slot on the mounting bracket to mount the PX Receiver. If the upper part of the bracket has the original round foam ring, you will need to remove it. New style foam is available free of charge.
4. When using a SB-700, SB-900, or SB-910 as a master device, mount the PX Transmitter to the back edge atop the flash head. Improper mounting will become evident if PX Transmitter fails to trigger as flash zoom level is increased.
5. Velcro mounting is required for the SB-700 in lieu of the mounting bracket.
6. When using the SB-910 off-camera, use the SB-900 slot of the mounting bracket to mount the PX Receiver.
7. Use the 580EX slot on the mounting bracket. If the upper part of the bracket has the original round foam ring, you will need to remove it. New style foam is available free of charge. All flashes must be set to flash channel 2.
8. Velcro mounting is required.