---
title: "Shore Power Cord — $199K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/shore-power-cord"
last_updated: "2026-08-11T19:51:58.814Z"
locale: en
meta:
description: "Niche score 48/100 · $199K/yr market · 61K searches/yr · $70.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $199K/yr market · 61K searches/yr · $70.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Shore Power Cord — $199K/yr Amazon US Niche (2026) - Flapen"
---
# **shore power cord**
**Skip it**
Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size 39Growth 81Conversion 55Competition 45Returns 51Price range 36Avg price 86Brand share 7Review moat 82Quality gap 21
**Avg price**
**Great****$70.49**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****351.87**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Great****+74.3%**
90-day search growth — must beat 0% to launch
**Conversion**
**Good****4.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$199K**
$199K/yr · 61K searches
**Price range**
**Okay****$18.59–$247.08**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, shore power cord is a $199K/yr Amazon United States market (61K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Skip it — 48/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **shore power cord market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$141K–$176K**
- units × avg price
- **Conversion rate**
- **4.7%**
- **Avg BSR**
- **#125**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **83%**
- **Out of stock**
- **4.2%**
- **Avg brand age**
- **56 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▼falling
**Sellers**
**84**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 96%
**Open market**
**1%**
- Marinco70% - Amp Up14% - Conntek8% - Fekuar4% - Kanayu2% - ONLINE LED STORE2% - Open — no brand owns it (1 brand, 1%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +74.3% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/shore-power-cord/trend)
## **Top shore power cord search terms**
- **shore power cord**16K/yr+92.8%2.1% conv. - **marinco**9K/yr+48.5%0.7% conv. - **30 amp shore power cord**8K/yr+76.9%2.0% conv. - **marinco 30 amp 125v**7K/yr+25.3%5.0% conv. - **marine shore power cord**5K/yr+134.2%2.3% conv. - **marine power cord**4K/yr+184.4%2.5% conv. - **boat shore power cords**5K/yr+57.8%1.9% conv. - **shore power cord 30 amp**3K/yr+135.0%2.8% conv. - **30 amp marine shore power cord**4K/yr-9.3%4.3% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/shore-power-cord/search-terms)
## **Top shore power cord 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%10%$20K20%$40K30%$60K40%$80K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Marinco 30A 125V Marine Shore Power Cordset Yellow 50 Ft 199119**Marinco**$96.90**4.7★613 rev](https://www.amazon.com/dp/B000NI5FJU) [2**Marinco 30A 125V Marine Shore Power Cordset Yellow 12 Ft 199116**Marinco**$61.90**4.7★594 rev](https://www.amazon.com/dp/B00CFC4QMO) [3**Conntek 17105-025RE Marine Shore Power 30 Amp Cordset with Light Indicator (Yellow 25-Feet)**Conntek**$62.51**4.6★880 rev](https://www.amazon.com/dp/B001TNRS7U) [4**Marinco 30A 125V Marine Shore Power Cordset Yellow 25 Ft 199117**Marinco**$103.35**4.7★594 rev](https://www.amazon.com/dp/B0060DVFJQ) [5**Marinco CS30-12 EEL Cordset 30A 125V 12 Yellow**Marinco**$72.93**4.6★298 rev](https://www.amazon.com/dp/B009IJFXEW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kanayu 10FT 30 Amp to 15 Amp Marine Shore Power Adapter Extension Power Cord NEMA L5-30P to 5-15/20R 10AWG 30Amp to 20Amp T Blade Marine Plug 125V Household Outlet Pigtail Boat Adapter**Kanayu**$32.71**52 rev1y ago](https://www.amazon.com/dp/B0DTK33VG1) [**1FT 30-Amp to 15-Amp Marine & RV-Adapter Cord Nema 5-15P to L5-30R 10AWG 15Amp Male to 30Amp-Female Twist Lock Power Adapter Marine Shore Power 30A 125V Receptacle to 110V 15A Household Plug**ADCAUDX**$20.08**187 rev2y ago](https://www.amazon.com/dp/B0CZ787MD8) [![True Mods 15 ft 125V 30 Amp RV Shore Power Extension Cord [NEMA TT-30P L5-30R] [Screw-In Twist Lock] [LED Light] [ETL] 30A 10 AWG 3 Prong Copper Wire Locking Electrical Cable for Travel Trailer Camper](https://m.media-amazon.com/images/I/41pAskVpQrL.jpg)**True Mods 15 ft 125V 30 Amp RV Shore Power Extension Cord \[NEMA TT-30P L5-30R\] \[Screw-In Twist Lock\] \[LED Light\] \[ETL\] 30A 10 AWG 3 Prong Copper Wire Locking Electrical Cable for Travel Trailer Camper**ONLINE LED STORE**$41.11**142 rev3y ago](https://www.amazon.com/dp/B0BWCHV1PL) [**Amp Up 125v 30 Amp Shore Power Cord 25ft Heavy Duty Marine Boat and RV NEMA L5-30 Power Cord with Twist Lock Watertight Molded Ends and UL Listed from a US Based Company (RV MUST have Twist Lock)**Amp Up**$66.76**419 rev5y ago](https://www.amazon.com/dp/B09B1FTWJX) [**25ft 30Amp 125V RV Power Wire Cord Marine Shore Boat L5-30 Yellow 25 Feet Heavy Duty Electrical Power Cable NEMA L5-30P to NEMA L5-30R**Fekuar**$67.90**79 rev5y ago](https://www.amazon.com/dp/B08DHRMD3L)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Marinco 30A 125V Marine Shore Power Cordset Yellow 12 Ft 199116**Marinco**$61.90**4.7★**▲ 108%**](https://www.amazon.com/dp/B00CFC4QMO) [**Conntek 17101-050RE 30Amp NEMA L5-30P to NEMA L5-30R Marine Shore Power with Light Indicator (White 50-Feet)**Conntek**$89.37**4.6★**▲ 94%**](https://www.amazon.com/dp/B001TNR8FC) [**Amp Up 125v 30 Amp Shore Power Cord 25ft Heavy Duty Marine Boat and RV NEMA L5-30 Power Cord with Twist Lock Watertight Molded Ends and UL Listed from a US Based Company (RV MUST have Twist Lock)**Amp Up**$66.76**4.8★**▲ 82%**](https://www.amazon.com/dp/B09B1FTWJX) [**Marinco CS30-12 EEL Cordset 30A 125V 12 Yellow**Marinco**$72.93**4.6★**▲ 59%**](https://www.amazon.com/dp/B009IJFXEW) [**Marinco 305CRCN.VPK Locking Connector & Cover 30A 125V**Marinco**$49.98**4.5★**▲ 55%**](https://www.amazon.com/dp/B000NI3GZK)
**~~View all trending →~~**
## **What buyers say about shore power cord**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**33%
*“Very well made”*
**Advertised Vs Actual Product**12%
*“Works as promised”*
**Value For Money**9%
*“Great Value”*
**Ease Of Use**6%
*“Easy to use”*
**Brightness/Shine/Glow**5%
*“Love the light power indicator”*
**Connectivity-Overall**5%
*“Easy way to connect your RV/Camper to the house”*
**Weight Heavy**5%
*“Heavy duty”*
**Add-Ons/Attachments**5%
*“Easy attachment”*
**Efficiency**5%
*“worked fine”*
**Friction**2%
*“Terminals on plugs have a very good clamping system for the wires”*
### **What buyers complain about **
**Size-Overall**21%
*“Does not fit well like my other cords”*
**Assembly/Installation**19%
*“installer beware”*
**Durability**14%
*“Stopped working 2 months later”*
**Weight Heavy**7%
*“But it is a little bulky”*
**Connectivity-Overall**7%
*“However, this 30A shore power connection is terrible”*
**Value For Money**7%
*“Throwing this overly expensive piece of trash”*
**Water Resistance**5%
*“The Gasket to waterproof the outside plug doesn't really work for cords 6 awg or larger”*
**Quality-Overall**5%
*“Overall, this product is of pretty poor quality despite its bulk and weight”*
### **Top return reasons **
**Size-Overall**34%
**Compatibility-Overall**22%
**Advertised Vs Actual Product**9%
**Connectivity-Overall**7%
**Functionality-Overall**5%
**Defective Material/Parts**5%
**Value For Money**3%
**Add-Ons/Attachments**2%
**Color**2%
**Mounting**1%
## **Common questions**
- **Is shore power cord profitable to sell on Amazon United States?**
- The niche generates $199K/yr across 23 tracked products. 90-day search growth is +74.3%. Flapen's verdict: Skip it (48/100).
- **How competitive is the shore power cord niche?**
- 7 brands and 84 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in shore power cord?**
- Top complaints mined from reviews: Size-Overall, Assembly/Installation, Durability. The return rate is 2.9%.
- **When does demand for shore power cord peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 2.8× the quietest.
- **What does it cost to enter the shore power cord niche?**
- Listings span $18.59–$247.08; the average listing price is $70.49 (sweet spot $15–$100). The average incumbent carries 352 reviews — the moat a new listing must climb.
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