breakout box
Skip itSoft demand (-28.9% this quarter) — this niche doesn't clear our bar today.
Review moat
Incredible96.7avg incumbent reviews — the moat a new listing must climb
Avg price
Great$71.85avg listing price — sweet spot $15–$100
Returns
Good2.2%return rate — above 6% kills the launch gate
Brand share
Good70%top-5 brand share — brands hold most of the demand
Competition
Okay55%top-5 click share — leaders hold, buyers still browse
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Price range
Okay$16.45–$255.96cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$109K$109K/yr · 50K searches
Growth
Bad-28.9%90-day search growth — must beat 0% to launch
Competition
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
26
Top-5 brand share
70%
Open market
24%
- GODIAG17%
- LUTIFIX17%
- CMTOOL15%
- Kawish11%
- Power Probe11%
- WOYO6%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
CMTOOL OBD2 Breakout Box with LED Light Indicator Professional 16-Pin OBD Breakout Box Automotive Electrical Diagnostic Test Tool Portable Testing Tool
CMTOOL$25.994.7★223 rev
OBD2 Breakout Box Automotive OBDII Protocol Detector Communication/Power/Ground Detection Breakout Box 16-Pin CAN 17.7 inches Cable Fault Diagnosis Scan Tool with Universal Wire Jumper and Clips
LUTIFIX$35.974.6★140 rev
KAWISH OBD2 Breakout Box Auto OBDII Protocol Detector 16-Pin CAN Bus Test Breakout Box with LCD Display for OBDII Protocol Communication Detection/ECU Tool
Kawish$64.004.7★249 rev
Power Probe OBD II Breakout Testing Box
Power Probe$255.964.6★187 rev
Godiag GT100+ OBDII Breakout Box Advanced OBD and CAN Protocol Detector for ECU Bench Testing and Car Diagnostics
GODIAG$108.664.7★283 rev
Newest
by launch date
AUTOOL OBD2 Breakout Box OBDII Protocol Detector for Monitoring Signals of Protocol/Power/Grounds ECU Connector with Multi-Function Jumper 120 OBD Diagnostic Port Tester CAN Test Box
AUTOOL$58.979 rev
OBD2 Breakout Box 120 Resistor DC 12V/24V Premium Automotive Diagnostics OBDII Protocol Detector for Communication/Power/Ground Detection/ECU Testing W/Voltage Display Universal Wire Jumper & Clips
LUTIFIX$65.663 rev
OBD2 Breakout Box with Voltage Display LED Indicator & Jumper Automotive OBDII Protocol Detector for Communication/Power/Ground Detection Works with Scanner/Multimeter/Oscilloscope 16-Pin CAN
LUTIFIX$48.348 rev
GODIAG GT100 Plus OBD2 Breakout Box CAN Protocol Detector for ECU Bench Testing Platform GPT/DOIP/ENET & Car Diagnostics
GODIAG$156.334 rev
TRISCO Super OBD2 Breakout Box 16-Pin Automotive Diagnostic Tool with Voltage Display ECU Programming Support CAN/K-LINE Protocol Detection
TRISCO$85.1812 rev
Trending
90-day click momentumOBD2 Breakout Box 120 Resistor DC 12V/24V Premium Automotive Diagnostics OBDII Protocol Detector for Communication/Power/Ground Detection/ECU Testing W/Voltage Display Universal Wire Jumper & Clips
LUTIFIX$65.663.5★
AUTOOL OBD2 Breakout Box OBDII Protocol Detector for Monitoring Signals of Protocol/Power/Grounds ECU Connector with Multi-Function Jumper 120 OBD Diagnostic Port Tester CAN Test Box
AUTOOL$58.974.8★
GODIAG GT100 Plus OBD2 Breakout Box CAN Protocol Detector for ECU Bench Testing Platform GPT/DOIP/ENET & Car Diagnostics
GODIAG$156.334.7★
OBD2 Breakout Box with Voltage Display LED Indicator & Jumper Automotive OBDII Protocol Detector for Communication/Power/Ground Detection Works with Scanner/Multimeter/Oscilloscope 16-Pin CAN
LUTIFIX$48.344.5★
MOTOCOCHE 16-Pin OBD2 Breakout Box for Automotive Diagnostics
MOTOCOCHE$25.404.7★
Demand & seasonality
Weekly Amazon search volume, last 92 weeks — -28.9% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“money well spent”
“quality product”
“Very professional tool it will help to make diagnosis wiring connection easy thank you so much, professional functions, money value beautiful worth it”
“Easy to use”
“Exactly as described”
“Works good and makes things nice”
“Thank you for this tool, which arrived well-packaged and on time”
“the layout is clean enough that you can quickly identify which pins you need to test”
“Works great”
“it's certainly more reliable than shoving pins into the connector itself. my old way”
What buyers complain about
“I was disappointed to find my oscilloscope leads don't fit it”
“Terrible misrepresentation”
“no indicator lights”
“that's causing a parasitic draw on the battery”
“We smelled it in the car”
“Cheaply made not good for what it says its good for”
“The thing got super hot”
“even though it was quite pricey back in the day”