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Description
HDZero Gamma 45A HD-Ready AIO HDZ55GMThe HDZero Gamma 45A HD Ready AIO is a compact, digital first all in one flight controller designed for 2. 54 inch FPV drones using the popular 25. 525. 5mm Whoop Toothpick mounting pattern. Built around the STM32G473 MCU, Gamma delivers strong processing headroom for modern Betaflight features while keeping builds clean, simple, and reliable. Ideal for 2. 54 inch digital FPV drones, including freestyle, racing, training, and drone soccer platforms.
The HDZero Gamma 45A HD-Ready AIO is a compact, digital-first all-in-one flight controller designed for 2.5–4 inch FPV drones using the popular 25.5×25.5mm Whoop / Toothpick mounting pattern.
Built around the STM32G473 MCU, Gamma delivers strong processing headroom for modern Betaflight features while keeping builds clean, simple, and reliable.
Ideal for 2.5–4 inch digital FPV drones, including freestyle, racing, training, and drone soccer platforms. Not recommended for heavy 5-inch builds.
Features
- 25.5×25.5mm Whoop / Toothpick mounting pattern
- Optimised for 2.5–4 inch digital FPV builds
- STM32G473 MCU with ICM gyro
- Integrated serial ExpressLRS 2.4GHz receiver
- 45A continuous / 60A burst 32-bit AM32 4-in-1 ESC
- 8V / 3A protected BEC for digital VTXs
- 5V / 3A BEC for LEDs and peripherals
- Standard digital VTX plug
- Castellated edge pads for clean, easy soldering
Specifications
- Mounting: 25.5 × 25.5 mm (Whoop / Toothpick), 8.4 g
- Recommended builds: 2.5–4 inch digital FPV
- MCU: STM32G473
- Receiver: Integrated serial ExpressLRS 2.4 GHz
- ESC firmware: AM32 (32-bit 4-in-1)
- Motor output: 45 A continuous / 60 A burst (per output), 3–6 s
- Digital VTX power: Protected 8 V / 3 A BEC
- Peripheral power: 5 V / 3 A BEC
- Video integration: Standard digital VTX plug
- OSD: Analogue OSD chip removed (digital-optimised)
Included
- HDZero Gamma 45A HD-Ready AIO
- 1x ELRS T-sharp short antenna (40mm)
- 5x M2 Rubber Grommet(5.6mm)
- 1x XT30 cable with 330uF/35V capacitor (70mm)
Browse more
- Browse all HDZero
- Browse all HD Digital FPV
- Browse all VTX
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2027 reviews
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Product Reviews
★★★★★ 5
Comfortable and easy to set up
Color: Black, Color: Black
I’m happy with this chair. It was not hard to assemble, and it feels stable after putting everything together. The mesh back is comfortable and breathable, so it doesn’t feel too hot when sitting for a while. The seat cushion is also thicker than I expected and feels soft enough for daily use. I like the adjustable headrest and the back support, especially for working at a desk. The chair looks simple and clean, and the wheels move smoothly. Good value for a home office chair.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Exactly the Desk Chair I Was Looking For
Color: Black
had been needing a new desk chair for a while, and this one has been a great addition to my workspace. I use it every day while working, and it feels very comfortable, even when sitting for long periods of time. The seat provides good support, and the backrest helps me stay comfortable throughout the day.
Assembly was straightforward, and the instructions were easy to follow. I also like how well it fits in my workspace and how nice it looks. So far, I am very happy with the comfort and overall quality. It has definitely made my workdays more enjoyable.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
very ergonomic
Color: Deep Black, Color: Deep Black
I bought this as a replacement for one of those gaming chairs that kills your back with a little lumbar pillow and this one is muuuuch better. the back support is everything you’d need and got rid of my neck pain after long periods of sitting and the seat cushion is supportive but still comfortable. It’s the kind of chair that you don’t really think about much because it’s so natural to sit in that you forget it’s there. The armrests flipping is a really nice feature too. One star off only because the head rest is so far back that i can’t really rest my head on it and every part of the chair that’s cloth is made of the same mesh texture like the armrests and seat. but i have no other complaints this is a good chair
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Comfortable Ergonomic Chair for Long Workdays
Color: Black, Color: Black
I’ve been using this chair for my home office, and it’s been a great addition to my workspace. The seat cushion is thick and comfortable, even after several hours of sitting, and the mesh back keeps good airflow throughout the day. I especially like the adjustable headrest, which provides extra neck support when leaning back during breaks. Assembly was straightforward, the chair feels sturdy, and the wheels roll smoothly on my floor. The all-black design also gives it a professional look that fits well in any office setup. Overall, it’s a comfortable and affordable ergonomic chair that offers excellent value for the price.
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Reviewed in the United States on May 28, 2026
★★★★★ 3
Sturdy but uncomfortable
Color: Black
The seat itself is sturdy and easy to put together, I’ve now had the product for 8 months and had no issues wear/tear despite nearly daily use, but… it’s not comfy, at all. The seat cushion has a texture to it that scrapes at my legs if I don’t have an extra pillow on it or am wearing shorts. Additionally, the seat pillow is just kind of hard. It doesn’t give very much at all, so if I sit on it for more than an hour or two at a time my butt starts to get really sore. It works as a budget option, but invest in a good seat pillow if you plan to sit in it for any length of time.
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Reviewed in the United States on April 29, 2026