---
title: "Waterproof Usb Port — $124K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/waterproof-usb-port"
last_updated: "2026-08-09T19:57:30.410Z"
locale: en
meta:
description: "Niche score 63/100 · $124K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 63/100 · $124K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Waterproof Usb Port — $124K/yr Amazon US Niche (2026) - Flapen"
---
# **waterproof usb port**
**Worth a look**
Shows a sweet-spot price point ($32.53 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 28Growth 79Conversion 57Competition 77Returns 77Price range 68Avg price 95Brand share 66Review moat 73Quality gap 30
**Avg price**
**Incredible****$32.53**
avg listing price — sweet spot $15–$100
**Growth**
**Great****+71.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Great****38%**
top-5 click share — an open shelf
**Returns**
**Great****1.9%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****564.75**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$9.27–$133.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****4.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$124K**
$124K/yr · 78K searches
According to Flapen's Amazon United States niche tracking, waterproof usb port is a $124K/yr Amazon United States market (78K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 63/100.
Data updated Jul 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **waterproof usb port market data**
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **$98K–$130K**
- units × avg price
- **Conversion rate**
- **4.9%**
- **Avg BSR**
- **#449**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **80%**
- **Out of stock**
- **0.9%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **189 days**
## **Competition & brand share**
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.
**Brands**
**20 **▼falling
**Sellers**
**137**
**Top-5 brand share**
**66%**
Top 20: 100%
**Top-5 click share**
**38%**
Top 20: 80%
**Open market**
**31%**
- Hapytrip35% - Scanstrut15% - HCGZHEN6% - Blue Sea Systems6% - SUTNSCW4% - Tailinwen4%
## **Demand & seasonality**
Weekly Amazon search volume, last 100 weeks — +71.1% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/waterproof-usb-port/trend)
## **Top waterproof usb port search terms**
- **marine usb charging port**14K/yr+107.2%5.1% conv. - **waterproof usb port**13K/yr+46.3%2.3% conv. - **boat phone charger**9K/yr+110.9%2.5% conv. - **marine phone charger**8K/yr+81.8%2.6% conv. - **boat usb charging port waterproof**7K/yr+81.6%4.5% conv. - **marine usb outlet waterproof**11K/yr-2.3%3.5% conv. - **boat usb port**5K/yr+91.3%3.8% conv. - **waterproof usb outlet**5K/yr+24.3%1.8% conv. - **waterproof usb charger**4K/yr+79.5%1.4% conv. - **marine usb outlet**3K/yr+110.4%3.3% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/waterproof-usb-port/search-terms)
## **Top waterproof usb port products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%$5K8%$10K12%$15K16%$20K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Upgraded 4 Port 12V USB Outlet Aluminum Charger 78W Dual PD & QC Multiple USB Port for Car USB C Cigarette Lighter Replacement 12 Volt Socket with Voltmeter Waterproof for Marine Boat Motorcycle RV**Hapytrip**$14.98**4.7★1,410 rev](https://www.amazon.com/dp/B0CTD84F3P) [2**SCANSTRUT Active 15W Waterproof Wireless Charger Mount IPX6 Rated 12/24V Qi Fast Charging Phone Holder for Boats RVs & ATVs One-Hand Docking Secure Grip Universal Compatibility**Scanstrut**$117.69**4.5★13 rev](https://www.amazon.com/dp/B0F24WQQ4N) [3**12V USB Outlet Wire USB Charger Multi Port Dual PD3.0 USB-C and Quick Charge3.0 Car Port Socket with Power Switch Fast Charge for Phone lPad Android Phones Suitable for Car Boat RV Marine ATV**Hapytrip**$14.50**4.5★1,710 rev](https://www.amazon.com/dp/B0BX6F1ZP9) [4**Upgraded 4 Port 12V USB Outlet 78W Dual PD & QC Aluminum Alloy USB Ports with LED Voltmeter Waterproof for Cars Cigarette Lighter Replacement 12V Socket for Boats RV Trucks and Motorcycles**HCGZHEN**$13.65**4.6★329 rev](https://www.amazon.com/dp/B0F261JZJW) [5**Blue Sea Systems 1016 Dual USB Charger Socket 12/24v 2.1a Black**Blue Sea Systems**$21.34**4.6★840 rev](https://www.amazon.com/dp/B0082CXEI8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Anina 78W Dual PD USB-C QC3.0 Fast Charging 3 Port Car Charger Socket 12V/24V with Voltmeter and Battery Protection Switch USB Outlet Cigarette Lighter for Marine Boat RV Truck Golf Cart Motorcycle**Anina**$15.34**26 rev11mo ago](https://www.amazon.com/dp/B0FK51RYKY) [**Acegoo 12V USB Outlet 30W PD Type-C & 18W QC3.0 Aluminum Car Charger Waterproof Dual Port Fast Charging Socket Cigarette Lighter Replacement Accessories for RV Camper Trailer Truck Boat Golf (2 PCS)**acegoo**$27.15**73 rev11mo ago](https://www.amazon.com/dp/B0FG81DTR8) [**SCANSTRUT Active 15W Waterproof Wireless Charger Mount IPX6 Rated 12/24V Qi Fast Charging Phone Holder for Boats RVs & ATVs One-Hand Docking Secure Grip Universal Compatibility**Scanstrut**$117.69**13 rev1y ago](https://www.amazon.com/dp/B0F24WQQ4N) [**SCANSTRUT Edge. 15W Waterproof Wireless ADJUS**Scanstrut**$133.99**4 rev1y ago](https://www.amazon.com/dp/B0F24XGQXD) [**78W 4 Port 12V USB Outlet Wall Mount Dual 36W PD & Dual 18W QC3.0 Lightweight Surface Mount Charger Socket Panel with Button Switch for Bus RV Truck Marine Golf Cart**Hapytrip**$15.01**550 rev1y ago](https://www.amazon.com/dp/B0F2HT51D9)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SCANSTRUT Edge. 15W Waterproof Wireless ADJUS**Scanstrut**$133.99**4.7★**▲ 175%**](https://www.amazon.com/dp/B0F24XGQXD) [**Anina 78W Dual PD USB-C QC3.0 Fast Charging 3 Port Car Charger Socket 12V/24V with Voltmeter and Battery Protection Switch USB Outlet Cigarette Lighter for Marine Boat RV Truck Golf Cart Motorcycle**Anina**$15.34**4.9★**▲ 158%**](https://www.amazon.com/dp/B0FK51RYKY) [**USB C Car Charger Socket Marine Grade 12V Outlet with Dual 18W PD Ports & QC 3.0 Fast Charging IP66 Waterproof Aluminum Flush Mount for Car Boat RV Marine**JUIXINVIM**$16.99**4.4★**▲ 132%**](https://www.amazon.com/dp/B0DT1MG354) [**SCANSTRUT Active 15W Waterproof Wireless Charger Mount IPX6 Rated 12/24V Qi Fast Charging Phone Holder for Boats RVs & ATVs One-Hand Docking Secure Grip Universal Compatibility**Scanstrut**$117.69**4.5★**▲ 123%**](https://www.amazon.com/dp/B0F24WQQ4N) [**2 Pack 12V USB Outlet Wired Charger Multi Port Dual PD3.0 USB-C and Quick Charge 3.0 Car Port Socket with Power Switch Fast Charger for Cell Phone Tablet Suitable for Car Boat RV Marine ATV**Hapytrip**$21.77**4.5★**▲ 68%**](https://www.amazon.com/dp/B0CWG4XNL4)
**~~View all trending →~~**
## **What buyers say about waterproof usb port**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Charging**18%
*“Charges fast”*
**Assembly/Installation**16%
*“Easy install in a box easy to install”*
**Quality-Overall**13%
*“Great product, work as expected”*
**Socket/Port/Plug**7%
*“The three ports are convenient”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Size-Overall**5%
*“Good size”*
**Efficiency**5%
*“it works flawlessly”*
**Value For Money**5%
*“Excellent value”*
**Portability**2%
*“compact the unit is”*
**Ease Of Use**2%
*“Easy peasy”*
### **What buyers complain about **
**Durability**12%
*“Did not last”*
**Quality-Overall**12%
*“This is not as good quality as I had hoped”*
**Socket/Port/Plug**9%
*“the port itself wouldnt conduct”*
**Functionality-Overall**8%
*“Did not work”*
**Charging**7%
*“it stopped charging”*
**Size-Overall**6%
*“So tiny”*
**Advertised Vs Actual Product**3%
*“Inaccurate description”*
**Instructions/User Manual/Troubleshooting**3%
*“No instructions”*
**Assembly/Installation**2%
*“Just poorly put together”*
**Value For Money**2%
*“Its a bit on the pricey side”*
### **Top return reasons **
**Size-Overall**21%
**Socket/Port/Plug**16%
**Compatibility-Overall**13%
**Charging**12%
**Functionality-Overall**9%
**Defective Material/Parts**7%
**Advertised Vs Actual Product**5%
**Assembly/Installation**3%
**Value For Money**2%
**Connectivity-Overall**2%
## **Common questions**
- **Is waterproof usb port profitable to sell on Amazon United States?**
- The niche generates $124K/yr across 40 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +71.1%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the waterproof usb port niche?**
- 20 brands and 137 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in waterproof usb port?**
- Top complaints mined from reviews: Durability, Quality-Overall, Socket/Port/Plug. The return rate is 1.9%.
- **When does demand for waterproof usb port peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the waterproof usb port niche?**
- Listings span $9.27–$133.99; the average listing price is $32.53 (sweet spot $15–$100). The average incumbent carries 565 reviews — the moat a new listing must climb.
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