Usb to Ttl
FailShoppers spend an estimated $66K a year here, so Usb to Ttl is a Fail.
- Flapen Score
- 45 / 100Top 41% of 8,347 Electronics niches · +2 vs the category median of 4345
- Market size
- $66K/yr70K searches / yr
- 90-day growth
- -3.4%search demand this quarter
- Competition
- 64%top-5 click share · 9 brands · 12 sellers
Flapen Score
Usb to Ttl against its category
The dotted line is the Electronics average. Past it, Usb to Ttl is stronger. Inside it, weaker.
Market
The Usb to Ttl market on Amazon at a glance
Shoppers on Amazon United States searched for Usb to Ttl 70K times last year and spent an estimated $66K. The top 5 brands take 87% of clicks. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 7.6% of those searches ended in a purchase.
Shoppers searched for this 70K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.6% of those searches ended in a purchase. Searches in the last 90 days moved -3.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $66K a year.
- Searches, last 12 months
- 70K
- Growth, 90 days vs prior 90
- -3.4%
- Conversion, latest week
- 7.6%
- Market size, estimated
- $66Ka year
- Top search term
- usb to ttl adapter10K searches a year
02 · Price
A sale here is worth $12.31.
Listings sell for $12.31 on average, from $7.03 to $20.81. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At $12.31 that is $1K to $3K a year per listing.
- Average price
- $12.31under the $15 to $100 sweet spot
- Price range
- $7.03–$20.81
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $1K–$3K
- Returns
- 1.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
94% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 2.0% of listings are out of stock. The average listing ranks #997 within Computer Cable Adapters. It carries 243 reviews at 4.43 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 94%
- Prime listings
- 100%
- Out of stock, average day
- 2.0%
- Average rank
- #997in Computer Cable Adapters
- Average rating
- 4.43 starsAmazon United States average 4.42 stars
- Average reviews
- 243per listing
- Listings tracked
- 16
04 · Newcomers
2 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top Usb to Ttl products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 21, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
DSD TECH SH-U09C5 USB to TTL UART Converter Cable with FTDI Chip Support 5V 3.3V 2.5V 1.8V TTL
- Price
- $14.01
- Rating
- 4.8/5
- Reviews
- 892
- Age
- 6y ago

HiLetgo CP2102 USB 2.0 to TTL Module Serial Converter Adapter Module USB to TTL Downloader with Jumper Wires
- Price
- $7.44
- Rating
- 4.4/5
- Reviews
- 926
- Age
- 12y ago

HJHYUL CP2102 USB to TTL Serial Adapter USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output STC Compatible Includes Jumper Wires for Arduino ESP8266 STM32 DIY Projects (3-Pack)
- Price
- $9.98
- Rating
- 4.5/5
- Reviews
- 82
- Age
- 12mo ago

HJHYUL CP2102 USB to TTL Serial Adapter Cable USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V) 3ft/95cm Long 3.3V TTL Signal for Arduino Raspberry Pi ESP8266 ESP32 (1pcs)
- Price
- $9.89
- Rating
- 4.6/5
- Reviews
- 23
- Age
- 3mo ago

DTECH USB to TTL Serial 3.3V Adapter Cable TX RX Signal 4 Pin 0.1 inch Pitch Female Socket PL2303 Prolific Chip Windows 10 8 7 XP Vista (6ft Black)
- Price
- $13.56
- Rating
- 4.4/5
- Reviews
- 211
- Age
- 7y ago
Trending
estimated 90-day click momentum
HJHYUL CP2102 USB to TTL Serial Adapter Cable USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V) 3ft/95cm Long 3.3V TTL Signal for Arduino Raspberry Pi ESP8266 ESP32 (1pcs)
- Price
- $9.89
- Rating
- 4.6/5
- Reviews
- 23
- Age
- 3mo ago

HJHYUL CP2102 USB to TTL Serial Adapter USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output STC Compatible Includes Jumper Wires for Arduino ESP8266 STM32 DIY Projects (3-Pack)
- Price
- $9.98
- Rating
- 4.5/5
- Reviews
- 82
- Age
- 12mo ago

USB To UART/I2C/SPI/JTAG Converter Board with Aluminum Alloy Case Aceess to Control Various UART/ I2C/SPI/JTAG Devices via Computer Support Win7/8/8.1/10/11 Linux etc. Compatible with 3.3V and 5V
- Price
- $20.81
- Rating
- 5.0/5
- Reviews
- 19
- Age
- 1y ago

HJHYUL CP2102 USB to TTL Serial Adapter USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output STC Compatible Includes Jumper Wires for Arduino ESP8266 STM32 DIY Projects (1-Pack)
- Price
- $7.03
- Rating
- 4.5/5
- Reviews
- 82
- Age
- 7mo ago

DTECH 3ft USB to TTL Serial Cable 3.3V 3 Pin TX RX Signal UART Adapter Debug Cord Genuine FTDI FT232RL Chip Compatible with Windows 11 10 8 7 Linux MAC OS 3Pin 3v3 2.54mm Dupont Female Header
- Price
- $15.25
- Rating
- 4.2/5
- Reviews
- 14
- Age
- 1y ago
Newest
by launch date
HJHYUL CP2102 USB to TTL Serial Adapter Cable USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V) 3ft/95cm Long 3.3V TTL Signal for Arduino Raspberry Pi ESP8266 ESP32 (1pcs)
- Price
- $9.89
- Rating
- 4.6/5
- Reviews
- 23
- Age
- 3mo ago

HJHYUL CP2102 USB to TTL Serial Adapter USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output STC Compatible Includes Jumper Wires for Arduino ESP8266 STM32 DIY Projects (1-Pack)
- Price
- $7.03
- Rating
- 4.5/5
- Reviews
- 82
- Age
- 7mo ago

HJHYUL CP2102 USB to TTL Serial Adapter USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output STC Compatible Includes Jumper Wires for Arduino ESP8266 STM32 DIY Projects (3-Pack)
- Price
- $9.98
- Rating
- 4.5/5
- Reviews
- 82
- Age
- 12mo ago

USB To UART/I2C/SPI/JTAG Converter Board with Aluminum Alloy Case Aceess to Control Various UART/ I2C/SPI/JTAG Devices via Computer Support Win7/8/8.1/10/11 Linux etc. Compatible with 3.3V and 5V
- Price
- $20.81
- Rating
- 5.0/5
- Reviews
- 19
- Age
- 1y ago

DTECH 3ft USB to TTL Serial Cable 3.3V 3 Pin TX RX Signal UART Adapter Debug Cord Genuine FTDI FT232RL Chip Compatible with Windows 11 10 8 7 Linux MAC OS 3Pin 3v3 2.54mm Dupont Female Header
- Price
- $15.25
- Rating
- 4.2/5
- Reviews
- 14
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 64% of clicks. Leaders hold, but buyers still shop past them.
Brands
9 falling
Sellers
12
Est. top-5 brand share
87%
Top 20: 100%
Est. top-5 click share
64%
Top 20: 100%
Open market
7%
- DSD TECH30%
- HJHYUL23%
- HiLetgo22%
- DTECH7%
- WWZMDiB5%
- JESSINIE5%
- Open — no brand owns it (3 brands, 7%)
Demand
Usb to Ttl search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3× · 11 of 12 months tracked
Search terms
Top Usb to Ttl search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- usb to ttl adapter10K/yr
- usb to ttl13K/yr
- usb to uart11K/yr
- uart to usb8K/yr
- uart7K/yr
- usb to uart adapter4K/yr
- usb ttl4K/yr
- usb uart3K/yr
- uart cable3K/yr
- usb ttl adapter4K/yr
Reviews and returns
What reviews say buyers love and hate about Usb to Ttl
We read the reviews and the return reasons for every product selling here.
“Not 100% plug”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Usb to Ttl questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









