RUSHFPV Tank II ULTIMATE FPV VTX 30x30mm 25-800mW 5.8GHz with MMCX Review (2026)

Who this VTX is for

The Tank II ULTIMATE targets builders assembling full-size freestyle or long range analog quads using a standard 30x30mm stack footprint, since it drops directly into that mounting pattern without an adapter plate or spacer. Pilots who fly a mix of close range park sessions and longer range flights over open terrain benefit from having one transmitter that covers both through switchable power rather than swapping hardware between sessions. The ULTIMATE designation refers to a version built for higher voltage input and more robust power handling than the base Tank II, so it suits builders running higher cell count batteries who want margin against overheating or brownouts under sustained load.

Power output and specs

According to the manufacturer and retailer listings, the Tank II ULTIMATE offers switchable output of pit, 25, 200, 500, and 800 milliwatts on 5.8GHz, using an MMCX antenna connector with an included adapter. The listed input voltage range is roughly 7 to 36 volts DC, wider than many standard analog VTX units, which is the main difference from the base Tank II and lets it run safely on higher cell count packs. Listed weight is about 7.2 grams including cable, and the board measures 36 by 36 by 4.5 millimeters with a 30x30mm mounting hole pattern using M3 screws.

Interference handling and control

The unit includes RUSHFPV's LOCK-ON technology, described by the manufacturer as eliminating frequency drift so that up to 8 quads can fly on assigned channels simultaneously without stepping on each other's video signal, a useful feature for group flying sessions. TBS authorized SmartAudio support lets a compatible flight controller change band, channel, and power output through the OSD in flight rather than requiring a physical button press on the VTX itself. The full metal casing is designed for heat dissipation under sustained high power output and offers some physical protection if the aircraft crashes.

Trade-offs and how it compares

Against the RUSHFPV Tank Mini, which uses a smaller 20x20mm footprint for compact builds, the Tank II ULTIMATE is the better fit for standard size stacks and offers a wider input voltage range for higher cell counts on bigger batteries. Compared with the AKK FX2-ultimate, which tops out lower on power and uses a simpler OSD configuration approach, the Tank II ULTIMATE offers more headroom for long range flying at 800mW along with SmartAudio integration for in flight adjustments. Builders working with micro or toothpick frames should look at the smaller Tank Mini or a comparable compact VTX instead, since the 30x30mm size and higher power draw are built for bigger aircraft with more mounting space.

Bottom line

The RUSHFPV Tank II ULTIMATE is a well specified analog VTX for standard size freestyle and long range builds, offering a wide voltage range, switchable power, and interference resistant channel locking in a compact 30x30mm package. It is not a fit for micro quads given its size, and sustained 800mW operation benefits from good airflow around the stack to manage heat buildup over long flights. For pilots building a full-size analog quad who want one VTX that handles both close range park flying and longer range sessions reliably, this is a solid, well supported choice backed by an established brand with good aftermarket availability.

Frequently asked questions