---
title: "Usb to Rs485 Adapter — $129K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/usb-to-rs485-adapter"
last_updated: "2026-08-11T06:35:32.615Z"
locale: en
meta:
description: "Niche score 48/100 · $129K/yr market · 280K searches/yr · $85.44 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $129K/yr market · 280K searches/yr · $85.44 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Usb to Rs485 Adapter — $129K/yr Amazon US Niche (2026) - Flapen"
---
# **usb to rs485 adapter**
**Skip it**
Weak search conversion (0.5%) — this niche doesn't clear our bar today.
Market size 29Growth 38Conversion 7Competition 50Returns 79Price range 27Avg price 80Brand share 32Review moat 96Quality gap 85
**Review moat**
**Incredible****83.5**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$85.44**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.8%**
return rate — above 5% kills the launch gate
**Competition**
**Good****55%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+10.6%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$129K**
$129K/yr · 280K searches
**Price range**
**Okay****$15.91–$331.77**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****0.5%**
search→purchase rate — share of searches ending in a sale
**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, usb to rs485 adapter is a $129K/yr Amazon United States market (280K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Feb–Mar–Apr–May–Jun. Verdict: Skip it — 48/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **usb to rs485 adapter market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$128K–$171K**
- units × avg price
- **Conversion rate**
- **0.5%**
- **Avg BSR**
- **#501**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **1.1%**
- **Avg brand age**
- **25 months**
- **Avg seller age**
- **191 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**14**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 95%
**Open market**
**11%**
- waveshare34% - seeed studio22% - ELECROW15% - Santek11% - efulycozyy4% - LAFVIN3% - Open — no brand owns it (6 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +10.6% search growth over the last 90 days.
10K6KSpike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar, Apr, May, Jun · busiest ÷ quietest = 3.4×
[**Open Trend **](https://flapen.com/research/us/electronics/usb-to-rs485-adapter/trend)
## **Top usb to rs485 adapter search terms**
- **e-ink display**59K/yr+20.1%0.3% conv. - **e ink display**60K/yr+4.3%0.4% conv. - **eink display**50K/yr+28.7%0.5% conv. - **epaper display**32K/yr+0.9%0.5% conv. - **waveshare e-ink**6K/yr+91.4%1.7% conv. - **e paper displays**7K/yr+7.3%0.6% conv. - **e-paper display**7K/yr-4.4%0.4% conv. - **e ink screen**6K/yr+4.7%0.4% conv. - **eink screen**5K/yr+11.8%0.3% conv. - **large e ink display**3K/yr+43.7%0.0% conv. [**All search terms **](https://flapen.com/research/us/electronics/usb-to-rs485-adapter/search-terms)
## **Top usb to rs485 adapter 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%$6K10%$13K15%$19K20%$26K1101001K 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**reTerminal E1001 7.5 Monochrome ePaper Display ESP32-S3 IoT Terminal with 3-Month Battery Life SenseCraft No-Code HMI WiFi & BLE SD Card Support**seeed studio**$89.06**3.8★22 rev](https://www.amazon.com/dp/B0FRFHVHNZ) [2**Waveshare 7.5inch E-Ink Raw Display Compatible with Raspberry Pi 5/4B/3B/Zero/Zero W/Zero 2W/Pico/Pico W/Pico WH 800480 Resolution with SPI Interface Without PCB**waveshare**$49.79**4.0★64 rev](https://www.amazon.com/dp/B075R69T93) [3**Waveshare 7.3inch 6-Color E-Paper Display Module Compatible with Raspberry Pi 5/4B/3B/Zero/Zero W/Zero 2W/Pico/Pico W/Pico WH Support Jetson Nano/Jetson Orin Nano**waveshare**$99.77**4.0★25 rev](https://www.amazon.com/dp/B0D9K193FY) [4**ELECROW ESP32 E-Ink Display 2.13 Inch CrowPanel E-paper HMI Display Compatible with Arduino IDE E Ink Screen with 122x250 Resolution Black/White Color Driven by SPI Interface (Without Acrylic Case)**ELECROW**$25.05**4.5★43 rev](https://www.amazon.com/dp/B0FX4PZZMQ) [5![[Santek] EZ Sign NFC E-Paper Display No Battery Ultra-Thin 0.13 Rewritable 4-Color Digital Display App-Controlled (iOS/Android/PC) IP65 (Silver 4.2 inch)](https://m.media-amazon.com/images/I/51ixWHO-n4L.jpg)**\[Santek\] EZ Sign NFC E-Paper Display No Battery Ultra-Thin 0.13 Rewritable 4-Color Digital Display App-Controlled (iOS/Android/PC) IP65 (Silver 4.2 inch)**Santek**$24.66**4.2★66 rev](https://www.amazon.com/dp/B0G36TDTNH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**XTEINK X3 eBook Reader (Developer Edition) 3.7 Pocket E-Ink eReader Ultra-Thin 0.2 2 oz Magnetic-Ready Pogo-Pin Charging Gyroscope Page-Turn Distraction-Free Reading 16GB Mist Gray**XTEINK**$68.67**84 rev1mo ago](https://www.amazon.com/dp/B0GSZX5MWR) [**IoTeikXgo 2.13 Inch E-Ink Display with ESP32-S3 Development Board**IoTeikXgo**$27.47**11 rev3mo ago](https://www.amazon.com/dp/B0GQZFJR6X) [**E-Paper Fridge Magnet Classic Plus E-Ink Battery-Free Instant Photo Style Display Wireless NFC Picture Frame Phone-Controlled Acrylic Memo Board for Party/Travel/Home & Gifts Compatible iPhone 13 and Newer (White)**efulycozyy**$28.94**40 rev4mo ago](https://www.amazon.com/dp/B0GT43RVSY) [**E-Paper Fridge Magnet Classic Plus E-Ink Battery-Free Instant Photo Style Display Wireless NFC Picture Frame Phone-Controlled Acrylic Memo Board for Party/Travel/Home & Gifts Compatible iPhone 13 and Newer (Black)**efulycozyy**$28.37**40 rev4mo ago](https://www.amazon.com/dp/B0GT4CVMGC) [**SwitchBot AI Art Frame 13.3 Electronic Ink Picture Frame Wireless Digital Photo Frame Long Battery Life Alexa Compatible Wall Decoration Home Dcor AI-Generated Art Gift for Art Lovers**SwitchBot**$297.49**201 rev4mo ago](https://www.amazon.com/dp/B0GDFSR9SN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**XTEINK X3 eBook Reader (Developer Edition) 3.7 Pocket E-Ink eReader Ultra-Thin 0.2 2 oz Magnetic-Ready Pogo-Pin Charging Gyroscope Page-Turn Distraction-Free Reading 16GB Mist Gray**XTEINK**$68.67**3.9★**▲ 200%**](https://www.amazon.com/dp/B0GSZX5MWR) [**E-Paper Fridge Magnet Classic Plus E-Ink Battery-Free Instant Photo Style Display Wireless NFC Picture Frame Phone-Controlled Acrylic Memo Board for Party/Travel/Home & Gifts Compatible iPhone 13 and Newer (White)**efulycozyy**$28.94**4.1★**▲ 197%**](https://www.amazon.com/dp/B0GT43RVSY) [**IoTeikXgo 2.13 Inch E-Ink Display with ESP32-S3 Development Board**IoTeikXgo**$27.47**3.3★**▲ 196%**](https://www.amazon.com/dp/B0GQZFJR6X) [![[Santek] EZ Sign NFC E-Paper Display No Battery Ultra-Thin 0.13 Rewritable 4-Color Digital Display App-Controlled (iOS/Android/PC) IP65 (Silver 4.2 inch)](https://m.media-amazon.com/images/I/51ixWHO-n4L.jpg)**\[Santek\] EZ Sign NFC E-Paper Display No Battery Ultra-Thin 0.13 Rewritable 4-Color Digital Display App-Controlled (iOS/Android/PC) IP65 (Silver 4.2 inch)**Santek**$24.66**4.2★**▲ 180%**](https://www.amazon.com/dp/B0G36TDTNH) [**E-Paper Fridge Magnet Classic Plus E-Ink Battery-Free Instant Photo Style Display Wireless NFC Picture Frame Phone-Controlled Acrylic Memo Board for Party/Travel/Home & Gifts Compatible iPhone 13 and Newer (Black)**efulycozyy**$28.37**4.1★**▲ 165%**](https://www.amazon.com/dp/B0GT4CVMGC)
**~~View all trending →~~**
## **What buyers say about usb to rs485 adapter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**10%
*“Easy to read”*
**Portability**8%
*“Easy to carry around”*
**Quality-Overall**7%
*“The construction quality is very good”*
**Size-Overall**6%
*“I love the size”*
**Value For Money**5%
*“great value”*
**Software/Application**5%
*“The app is easy to use”*
**Compatibility-Overall**4%
*“it uses the common Pi headers so compatibility is great”*
**Display Resolution**4%
*“Screen quality- very high resolution”*
**Design-Overall**4%
*“we love its design”*
**Battery Life**4%
*“Battery life is really good”*
### **What buyers complain about **
**Size-Overall**7%
*“Slightly larger than a Raspberry Pi”*
**Quality-Overall**6%
*“Cheap quality”*
**Functionality-Overall**5%
*“this doesn't function very well”*
**Software/Application**4%
*“Software is trash”*
**Value For Money**3%
*“This is such a waste of money”*
**Ease Of Use**3%
*“NOT user friendly”*
**Touch/Button Controls**3%
*“The buttons are a hot mess”*
**Connectivity-Overall**3%
*“it's tricky to get the connection perfect”*
**Instructions/User Manual/Troubleshooting**3%
*“it also has absolutely NO directions”*
**Durability**3%
*“it broke after 30 days of use”*
### **Top return reasons **
**Functionality-Overall**16%
**Size-Overall**13%
**Value For Money**11%
**Touch Screen**5%
**Connectivity-Overall**5%
**Touch/Button Controls**5%
**Compatibility-Overall**4%
**Advertised Vs Actual Product**4%
**Software/Application**4%
**Defective Material/Parts**4%
## **Common questions**
- **Is usb to rs485 adapter profitable to sell on Amazon United States?**
- The niche generates $129K/yr across 24 tracked products. 8 of 15 products launched in the last 360 days are still selling. 90-day search growth is +10.6%. Flapen's verdict: Skip it (48/100).
- **How competitive is the usb to rs485 adapter niche?**
- 12 brands and 14 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in usb to rs485 adapter?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Functionality-Overall. The return rate is 1.8%.
- **When does demand for usb to rs485 adapter peak?**
- Demand peaks in Feb–Mar–Apr–May–Jun; the busiest month runs 3.4× the quietest.
- **What does it cost to enter the usb to rs485 adapter niche?**
- Listings span $15.91–$331.77; the average listing price is $85.44 (sweet spot $15–$100). The average incumbent carries 84 reviews — the moat a new listing must climb.
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