usb to rs485 adapter
Skip itWeak search conversion (0.5%) — this niche doesn't clear our bar today.
Review moat
Incredible83.5avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Great$85.44avg listing price — sweet spot $15–$100
Returns
Great1.8%return rate — above 5% kills the launch gate
Competition
Good55%top-5 click share — leaders hold, buyers still browse
Growth
Okay+10.6%90-day search growth — must beat 0% to launch
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Market size
Okay$129K$129K/yr · 280K searches
Price range
Okay$15.91–$331.77cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
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
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.Peak months: Feb, Mar, Apr, May, Jun · busiest ÷ quietest = 3.4×
Top usb to rs485 adapter search terms
- e-ink display59K/yr
- e ink display60K/yr
- eink display50K/yr
- epaper display32K/yr
- waveshare e-ink6K/yr
- e paper displays7K/yr
- e-paper display7K/yr
- e ink screen6K/yr
- eink screen5K/yr
- large e ink display3K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$89.063.8★22 rev
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$49.794.0★64 rev
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$99.774.0★25 rev
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$25.054.5★43 rev
![[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$24.664.2★66 rev
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$68.6784 rev
IoTeikXgo 2.13 Inch E-Ink Display with ESP32-S3 Development Board
IoTeikXgo$27.4711 rev
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$28.9440 rev
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$28.3740 rev
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$297.49201 rev
Trending
90-day click momentumXTEINK 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$68.673.9★
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$28.944.1★
IoTeikXgo 2.13 Inch E-Ink Display with ESP32-S3 Development Board
IoTeikXgo$27.473.3★
[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$24.664.2★
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$28.374.1★
What buyers say about usb to rs485 adapter
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to read”
“Easy to carry around”
“The construction quality is very good”
“I love the size”
“great value”
“The app is easy to use”
“it uses the common Pi headers so compatibility is great”
“Screen quality- very high resolution”
“we love its design”
“Battery life is really good”
What buyers complain about
“Slightly larger than a Raspberry Pi”
“Cheap quality”
“this doesn't function very well”
“Software is trash”
“This is such a waste of money”
“NOT user friendly”
“The buttons are a hot mess”
“it's tricky to get the connection perfect”
“it also has absolutely NO directions”
“it broke after 30 days of use”
Top return reasons
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.