---
title: "Products — usb to serial adapter - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/usb-to-serial-adapter/products"
last_updated: "2026-08-10T18:28:57.254Z"
locale: en
meta:
  description: "Niche score 41/100 · $370K/yr market · 265K searches/yr · $14.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 41/100 · $370K/yr market · 265K searches/yr · $14.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Products — usb to serial adapter - Flapen"
---

# **usb to serial adapter**

**Skip it**

A concentrated shelf (top 5 take 94% of clicks) — this niche doesn't clear our bar today.

Market size 54Growth 24Conversion 87Competition 5Returns 62Price range 51Avg price 67Brand share 8Review moat 44Quality gap 43

**Conversion**

**Great****9.9%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Good****$14.05**

avg listing price — sweet spot $15–$100

**Returns**

**Good****2.5%**

return rate — above 5% kills the launch gate

**Market size**

**Good****$370K**

$370K/yr · 265K searches

**Price range**

**Good****$7.00–$23.47**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Review moat**

**Okay****2,139.71**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-1.6%**

90-day search growth — must beat 0% to launch

**Brand share**

**Bad****97%**

top-5 brand share — brand-locked demand

**Competition**

**Bad****94%**

top-5 click share — a locked-up shelf

## Products