• HDZero Crux35 3.5-Inch Sub-250g Freestyle Drone with 90Hz Camera and V2 VTX for Low-Latency FPV
  • HDZero Crux35 3.5-Inch Sub-250g Freestyle Drone with 90Hz Camera and V2 VTX for Low-Latency FPV
  • HDZero Crux35 is a lightweight 3.5-inch freestyle drone with a 90Hz camera, V2 VTX for low-latency FPV, and a compact design.
  • The Crux35 is a lightweight 3.5-inch freestyle drone with a 90Hz camera, V2 VTX for low-latency FPV, and excellent agile flight performance.
  • The HDZero Crux35 is a 3.5-inch freestyle drone featuring a 90Hz camera, V2 VTX for low-latency FPV, and comes in a gray case with accessories.
  • The HDZero Crux35 is a lightweight 3.5-inch freestyle drone featuring a 90Hz camera, V2 VTX, and sub-250g weight for low-latency FPV.
  • The HDZero Crux35 is a lightweight, 3.5-inch freestyle drone offering a 90Hz camera, V2 VTX for low-latency FPV, and transparent propellers.
  • The HDZero Crux35 is a lightweight freestyle drone with detailed component connections, multiple ports, low-latency FPV, and efficient power management.
  • The HDZero Crux35 is a compact 3.5-inch freestyle drone featuring a 90Hz camera, V2 VTX for low-latency FPV, and a streamlined design.
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HDZero Crux35 3.5-Inch Sub-250g Freestyle Drone with 90Hz Camera and V2 VTX for Low-Latency FPV

HDZero Crux35 3.5-Inch Sub-250g Freestyle Drone with 90Hz Camera and V2 VTX for Low-Latency FPV

HDZero

$279.00 USD
$279.00 USD
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Overview

The HDZero Crux35 is a sub-250g 3.5-inch FPV freestyle drone co-developed by HDZero and Happymodel. Designed for backyard ripping and park cruising, this lightweight digital drone features the powerful HDZero Freestyle V2 VTX and ultra-fast Nano 90 90Hz camera, delivering just 3ms latency for unmatched flight responsiveness and precision.

Compact and agile, the 150mm frame and EX1404 3500KV motors paired with HQProp 3.5” tri-blade props offer excellent thrust-to-weight ratio and stable maneuverability. Perfect for flying tight lines with confidence, the Crux35 achieves up to 12 minutes of flight time on a 4S 750mAh LiPo, making it ideal for both freestyle beginners and seasoned pilots.

Key Features

  • Sub-250g build for regulation-friendly flying

  • 90Hz HDZero Nano 90 camera with 3ms latency for ultra-fast FPV feedback

  • HDZero Freestyle V2 VTX with strong video transmission power

  • Compact 150mm wheelbase, great for tight spaces

  • EX1404 3500KV motors for efficient power and long flights

  • 8–12 minutes flight time with 4S 750mAh battery

  • Co-branded by HDZero and Happymodel for quality assurance

Specifications:
Brand: Happymodel
Product name: Crux35 / Crux35 HDZERO / Crux35 HD
Wheelbase: 150mm
Weight: Crux35 87gram
Crux35 HD 108gram
Size: 130mmx130mmx45mm(without propellers)
Receiver option: UART ExpressLRS 2.4GHz
SPI Frsky D8/D16 (S-FHSS compatible)
Camera and VTX option:
HD DJI version Nebula+Vista or Runcam Link Wasp Nano
HDZERO version RunCam Nano HDZero Camera + HDZERO WHOOP VTX
Analog version Ant+OVX303 or OVX306 VTX
Flying time: 9min~15min 4s 750mah battery

Package includes:

Item Name Crux35 Crux35 HDZERO Crux35 HD DJI
Crux35 Frame 1 1 1
Option1: ELRS X1 FC with SPI ELRS（Discontinued） 1 1 1
Option2:CrazyF411 ELRS FC with UART ELRS
Option3: CrazyF411 FRSKY FC SPI Frsky
CaddxFPV Digital HD Camera Nebula Nano Kit

 

Or Runcam Link Wasp Nano

 0 0 1
HDZERO Whoop VTX+ Rucam HDZERO Camera 0 1 0
Analog FPV Camera Caddx Ant 1 0 0
Happymodel OVX303 5.8G analog VTX 1 0 0
Happymodel EX1404 KV3500 brushless motor 4 4 4
HQProp T3.5X2X3Grey (4cw+4ccw) 1 1 1
Screw Driver 1 1 1
Buckle Velcro for battery 1 1 1
Motor Mode: EX1404
KV options: KV3500
Configu-ration:9N12P
Stator Diamter:14mm
Stator Length:4mm
Shaft Diameter: Φ1.5mm
Motor Dimension(Dia.*Len):Φ15mm*15mm
Weight(g):9g
Propellers Propeller Diameter: 3.5 inch
Pitch : 2
Blades : 3
Material : Poly Carbonate
Weight : 1.5g
Hub Diameter : 10mm
Hub Thickness:4.7mm
Shaft :1.9/1.5/1.9mm
Adaptor Rings : NO
Flight controller 

 

(UART ELRS Version)

CrazybeeF411 ELRS
MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: ICM42688P or BMI270 (SPI Control)
Mount pattern: 25.5×25.5 M2
Size:32*32*5mm
Power supply: 2-4S Lipo battery
Built-in 20A Blheli_s ESC each
Built-in Betaflight OSD(SPI Control)
Built-in UART ExpressLRS 2.4GHz receiver
Built-in 5V 1.5A BEC
Flight controller firmware target: CRAZYBEEF4DX
Flight controller 

 

(SPI ELRS Version)

ELRS X1 (Discontinued)

 MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Mount pattern: 20×20 M2Size:32*28*9mm
Power supply: 2-4S Lipo battery
Built-in 12A Blheli_s ESC each
Built-in Betaflight OSD(SPI Control)
Built-in SPI ExpressLRS 2.4GHz receiver
Built-in 5V 1A BEC
Flight controller firmware target: CRAZYBEEF4SX1280
Flight controller
(Frsky version)CrazybeeF411 FRSKY 		MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: BMI270 or ICM42688P(SPI connection)
Board size: 28.5 * 28.5MM
Power supply: 2-4S battery input (DC 8V-17V)
Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power Amplification
Built-in Betaflight OSD(SPI Control)
Built-in Current meter
Built-in 5V 1.5A BEC
Built-in voltage detectionFirmware target: MATEKF411RX
Onboard 4in1 ESC MCU upgraded to EFM8BB21
Power supply: 2-4S LiPo/LiPo HVCurrent: 12A continuous peak 15A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: F-H-40
Default protocol: DSHOT300
Onboard UART ExpressLRS 2.4GHz Receiver( UART ELRS version) Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
RF Frequency: 2.4GHzAntenna plug: IPEX
Telemetry output Power: <12dBm
Receiver protocol:  CRSF
Default firmware version: ExpressLRS V3.0.1
Onboard SPI Frsky 2.4GHz receiver (Frsky Version) SPI BUS receiver
Frsky D8/D16/EU-LBT/, Futaba S-FHSS switchable on Betaflight
Channels: 8ch/16chDual antenna
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 400m
CaddxFPV Digital HD Camera Nebula Nano Kit

 

(Digital HD version)

 Weight(camera included]: 24g
Antenna: 2.3g
Dimensions: Vista Kit 30×29×13mm
Camera 14×14×21mm
Operating Frequency: 5.725-5.850GHz
Transmitter Power[EIRP]: FCC/SRRC/MIC:<30dBm
CE:<14dBm
Min.latencylend-to-end) 720p 60fps:32ms
Max.Transmission Distance FcC/SRRC: 4km
CE:0.7km
lnput Power: 7.4-26.4V
Power Output: 25mW/200mW/500mW/700mw
Goggles : Work with DJl goggles
Camera
Sensor: 1/3”CMOS
Lens:2.1mm,f/2.1
Shutter: Rolling
shutterFOV:142°(D);122°(H);75°(V)
LHCP antenna
Caddx ANT 1200tvl camera

 

(Analog version)

 Image Sensor: 1/3″ CMOS Sensor
Horizontal Resolution: 1200 TVL
TV System: NTSC or PAL
IMAGE: 16:9 or 4:3
Synchronization: Internal
Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000
S/N Ratio : >52dB (AGC OFF)
Video Output: CVBS
Lens: 1.8mm
Min. Illumination: 0.001Lux@F1.2
Auto Gain Control: YES
BLC: YES
WDR: Global WDR
DNR: 3D DNR
Dimensions: 14*14mm(with bracket to 19*19mm)
Wide Power Input: DC 3.7-18V
Work Temperature: -20℃~+60℃
Weight: 2g (N.W.)
OVX303 5.8Ghz VTX
(Analog version) 		Model: OVX303
Frequency: 5.8G 40CH
Transmitting Power: 0/RCE/25mw/100mw/300mw
Power supply: DC 5V
Current (5v): <650ma (300mw)
Weight: 1.5gram without antenna
OVX306 5.8Ghz VTX
(Analog version) 		Model: OVX306
Frequency: 5.8G 40CH
Transmitting Power: 0/RCE/25mw/100mw/300mw
Power supply: DC 5V
Current (5v): <650ma (300mw)
Weight: 1.5gram without antenna
Camera
RunCam Nano HDZero(HDZERO version) 		Model: Racer
SKU: HDZ3203
Lens: FOV D150 degree
Power: 450mA@3.3v
Digital: 1280*720@60fps
VTX  
HDZero Whoop(TX5S.1)(HDZERO version) 		Model: HDZero Whoop
SKU: HDZ3110
Frequency: 5.8G
Resolution Default: 1280*720@60fps
RF power: 25mw/200mw
RF Connector: U.FL
Interface: 4 lane MIPI CSI YUV422
Video Connector: 20 Position 0.30mm Pitch
Size: 32.5mm x 32.5mm x 7mm
Weight: 5.4g
Power:  410mA@12V
Mounting: 25.5mm*25.5mm,M2 clearance hole

Details

HDZero Crux35 3.5 Drone, HDZero Crux35 3.5-Inch Sub-250g Freestyle Drone with 90Hz Camera and V2 VTX for Low-Latency FPV

HDZero Crux35 3.5 Drone, Compact and regulation-friendly drone with high-definition camera, strong video transmission, efficient motors, and long flight time.

HDZero Crux35 3.5 Drone, The HDZero Crux35 is a lightweight FPV drone co-developed with Happymodel.

 

 

 

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