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usb to serial adapter
Skip itA concentrated shelf (top 5 take 94% of clicks) — this niche doesn't clear our bar today.
Conversion
Great9.9%search→purchase rate — share of searches ending in a sale
Avg price
Good$14.05avg listing price — sweet spot $15–$100
Returns
Good2.5%return rate — above 5% kills the launch gate
Market size
Good$370K$370K/yr · 265K searches
Price range
Good$7.00–$23.47cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay2,139.71avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-1.6%90-day search growth — must beat 0% to launch
Brand share
Bad97%top-5 brand share — brand-locked demand
Competition
Bad94%top-5 click share — a locked-up shelf