---
title: "Ethernet Over Coax — $66K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/ethernet-over-coax"
last_updated: "2026-08-10T03:22:27.833Z"
locale: en
meta:
description: "Niche score 35/100 · $66K/yr market · 53K searches/yr · $86.92 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 35/100 · $66K/yr market · 53K searches/yr · $86.92 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Ethernet Over Coax — $66K/yr Amazon US Niche (2026) - Flapen"
---
# **ethernet over coax**
**Skip it**
High returns (12.2%) — this niche doesn't clear our bar today.
Market size 17Growth 19Conversion 18Competition 39Returns 0Price range 62Avg price 80Brand share 35Review moat 69Quality gap 79
**Avg price**
**Great****$86.92**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****755.65**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$7.06–$144.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****62%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-12.0%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$66K**
$66K/yr · 53K searches
**Returns**
**Bad****12.2%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, ethernet over coax is a $66K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jan–Aug. Verdict: Skip it — 35/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ethernet over coax market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$87K–$109K**
- units × avg price
- **Conversion rate**
- **1.4%**
- **Avg BSR**
- **#319**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **63 months**
- **Avg seller age**
- **197 days**
## **Competition & brand share**
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **—flat
**Sellers**
**48**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**62%**
Top 20: 100%
**Open market**
**12%**
- Hitron29% - ScreenBeam25% - goCoax13% - TRENDnet11% - LINOVISION7% - CubQuantnestars4% - Open — no brand owns it (7 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -12.0% search growth over the last 90 days.
2K1KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Aug · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/electronics/ethernet-over-coax/trend)
## **Top ethernet over coax search terms**
- **ethernet over coax**34K/yr-3.7%1.6% conv. - **ethernet over coax adapter**9K/yr-51.6%1.7% conv. - **ethernet over coax kit**4K/yr+44.3%0.9% conv. - **ethernet coax**2K/yr-11.7%1.7% conv. - **moca adapter for ethernet over coax**4K/yr-12.5%0.3% conv. [**All search terms **](https://flapen.com/research/us/electronics/ethernet-over-coax/search-terms)
## **Top ethernet over coax 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%5%$3K10%$7K15%$10K20%$13K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hitron MoCA 2.5 Network Adapter (2-Pack) NOT a Modem - Extends Internet Over Coax | NOT for Satellite/AT&T U-Verse | Works Cable/Fiber/DSL | Requires Connected Coax**Hitron**$101.02**4.4★1,547 rev](https://www.amazon.com/dp/B08MQG6T61) [2**ScreenBeam Bonded MoCA 2.5 Network Adapter for Highest Speed Internet Ethernet Over Coax - Starter Kit (Model: ECB7250K02)**ScreenBeam**$135.39**4.4★4,188 rev](https://www.amazon.com/dp/B08ML1TSXC) [3**Hitron HTEM5 MoCA 2.5 Network Adapter (2-Pack) - Extends Network via Coax | NOT a Modem/Router/WiFi | Requires Cable TV Wiring (NOT Satellite) | Works with Cable & Most Fiber (NOT AT&T) | 2.5 Gbps**Hitron**$116.45**4.5★406 rev](https://www.amazon.com/dp/B0C47MJT83) [4**goCoax MoCA 2.5 Adapter (2-Pack) with 2.5GbE Ethernet Port | MA2500D Ethernet Over Coax for Gaming & 4K Streaming | 2.5Gbps Plug and Play | for Cable Internet Homes - Not for Satellite TV (White)**goCoax**$118.63**4.5★609 rev](https://www.amazon.com/dp/B09RB1QYR9) [5**LINOVISION POE Over Coax EOC Converter IP Over Coax Max 3000ft Power and Data Transmission Over Regular RG59 Coaxial Cable for Upgrading Analog Surveillance System to IP Surveillance System**LINOVISION**$82.60**4.4★404 rev](https://www.amazon.com/dp/B07G194BQD)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**POE Over Coax EOC Converter Ethernet Over Coax Adapter for Analog to IP CCTV Security System Upgrade Coax to Ethernet Transmitter Kit Max 3000ft Power & Data Transmission**WEILAILIFE**$75.20**2 rev4mo ago](https://www.amazon.com/dp/B0GT51NNKK) [**TRENDnet 2.5Gbps Ethernet Over Coax Adapter (2-Pack) TMO-313C2K 1 x MoCA Coax F-Type Female Coax Input 1 x 2.5Gbps RJ45 LAN Port NDAA & TAA Compliant**TRENDnet**$130.84**12 rev8mo ago](https://www.amazon.com/dp/B0FWGK7QS3) [**POE Over Coax Converter BNC to Ethernet IP Extender EOC 3280ft(1000m) Power & Data Transmission Over RG59 Coaxial Cable for Analog to IP CCTV Security Surveillance System Upgrade 2 in1 BNC+Twist Pair**CubQuantnestars**$76.27**33 rev1y ago](https://www.amazon.com/dp/B0FHH96H9J) [**Ethernet Over Coax EoC Converter Coax to Ethernet Adapter Extension Distance Up to 3938ft(1200m) 10/100mbps Coaxial IP Extender for Upgrading Analog Surveillance System to IP Surveillance System**Reidubo**$58.11**2 rev1y ago](https://www.amazon.com/dp/B0F8QV2QX9) [**Cunyuer Network Coaxial Transmitter 1 Pair 10/100Mbps Passive IP Over Coax Extender for IP Cameras & NVR NOT for Analog/BNC Cameras or PC Networks**Cunyuer**$17.62**9 rev1y ago](https://www.amazon.com/dp/B0DRD3VKLG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**POE Over Coax EOC Converter Ethernet Over Coax Adapter for Analog to IP CCTV Security System Upgrade Coax to Ethernet Transmitter Kit Max 3000ft Power & Data Transmission**WEILAILIFE**$75.20**1.0★**▲ 291%**](https://www.amazon.com/dp/B0GT51NNKK) [**TRENDnet 2.5Gbps Ethernet Over Coax Adapter (2-Pack) TMO-313C2K 1 x MoCA Coax F-Type Female Coax Input 1 x 2.5Gbps RJ45 LAN Port NDAA & TAA Compliant**TRENDnet**$130.84**4.8★**▲ 249%**](https://www.amazon.com/dp/B0FWGK7QS3) [**TRENDnet Ethernet Over Coax Adapter Backward Compatible with MoCA 2.0 Gigabit LAN Port Supports Net Throughput Up to 1Gbps Supports Up to 16 Nodes On One Network Black TMO-311C**TRENDnet**$38.50**4.6★**▲ 179%**](https://www.amazon.com/dp/B08PDMNK1Z) [**Kiwee Broadband MoCA 2.5 Adapter with Dual 2.5GbE Ports (2-Pack) | High-Speed Ethernet Over Coaxial | 2.5Gbps Wired LAN for Streaming Gaming Mesh WiFi | Includes Coax & Ethernet Cables | KB-M3-02**Generic**$119.00**4.7★**▲ 104%**](https://www.amazon.com/dp/B0DMFLBZZ5) [**POE Over Coax Converter BNC to Ethernet IP Extender EOC 3280ft(1000m) Power & Data Transmission Over RG59 Coaxial Cable for Analog to IP CCTV Security Surveillance System Upgrade 2 in1 BNC+Twist Pair**CubQuantnestars**$76.27**4.2★**▲ 97%**](https://www.amazon.com/dp/B0FHH96H9J)
**~~View all trending →~~**
## **What buyers say about ethernet over coax**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**19%
*“Easy to hook up works great”*
**Connectivity-Overall**16%
*“stable reliable connection”*
**Advertised Vs Actual Product**10%
*“Works just as expected”*
**Quality-Overall**9%
*“Excellent Product”*
**Data Transfer Speed**9%
*“Works great, good speed”*
**Value For Money**4%
*“Well worth the money”*
**Ease Of Use**4%
*“Easy to use”*
**Compatibility-Overall**4%
*“Works perfectly with once it pairs up”*
**Socket/Port/Plug**3%
*“The 2 network ports are great for my case where I need to hook up AP”*
**Computation Performance**2%
*“Good and fast”*
### **What buyers complain about **
**Connectivity-Overall**17%
*“connection drops out”*
**Functionality-Overall**11%
*“Power adapter didnt work”*
**Value For Money**9%
*“the price may be a bit high”*
**Compatibility-Overall**7%
*“Wanted to return because seem not working and as expected and not compatible”*
**Signal Strength**5%
*“the signal always drops”*
**Quality-Overall**3%
*“poor quality”*
**Data Transfer Speed**3%
*“After about 6 hours of debugging coax cables, ethernet cables, junction boxes, my gateway, and even the firmware on the MoCA adapters, I found out that one of the adapters was defective and limited to 100 mbps. whereas the other adapter did indeed have 1 gbps speed”*
**Assembly/Installation**3%
*“Set up was a pain”*
**Durability**3%
*“it completely broke”*
**Defective Material/Parts**3%
*“Broken switch from the factory”*
### **Top return reasons **
**Compatibility-Overall**39%
**Connectivity-Overall**31%
**Functionality-Overall**12%
**Defective Material/Parts**4%
**Assembly/Installation**2%
**Advertised Vs Actual Product**2%
**Value For Money**2%
**Product Condition**1%
**Size-Overall**1%
**Socket/Port/Plug**1%
## **Common questions**
- **Is ethernet over coax profitable to sell on Amazon United States?**
- The niche generates $66K/yr across 20 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -12.0%. Flapen's verdict: Skip it (35/100).
- **How competitive is the ethernet over coax niche?**
- 13 brands and 48 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in ethernet over coax?**
- Top complaints mined from reviews: Connectivity-Overall, Functionality-Overall, Value For Money. The return rate is 12.2% — above our launch gate.
- **When does demand for ethernet over coax peak?**
- Demand peaks in Jan–Aug; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the ethernet over coax niche?**
- Listings span $7.06–$144.59; the average listing price is $86.92 (sweet spot $15–$100). The average incumbent carries 756 reviews — the moat a new listing must climb.
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