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51

usb tester

Worth a look

Shows low returns (1.3%), but soft demand (-25.3% this quarter) keeps it on the watch list.

Market size 34Growth 12Conversion 66Competition 52Returns 90Price range 82Avg price 77Brand share 28Review moat 77Quality gap 62

Returns

Great1.3%

return rate — above 5% kills the launch gate

Price range

Great€5.22–€64.68

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

Review moat

Great450.38

avg incumbent reviews — the moat a new listing must climb

Avg price

Great€15.63

avg listing price — sweet spot $15–$100

Conversion

Good5.9%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Market size

Okay€163K

€163K/yr · 176K searches

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Growth

Bad-25.3%

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

According to Flapen's Amazon Germany niche tracking, usb tester is a €163K/yr Amazon Germany market (176K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Jan. Verdict: Worth a look — 51/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

usb tester market data

Units sold / yr
8K–10K
avg 250–500/product
Revenue / yr
€125K–€156K
units × avg price
Conversion rate
5.9%
Avg BSR
#88
Page quality
0%
Prime
100%
Sponsored
96%
Out of stock
8.2%
Avg brand age
33 months
Avg seller age
209 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

16

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

54%

Top 20: 93%

Open market

9%

  • YEREADW26%
  • YOJOCK26%
  • Treedix23%
  • Voktta9%
  • Heemol5%
  • diymore3%
  • Open — no brand owns it (6 brands, 9%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -25.3% search growth over the last 90 days.
6K4KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.7×

Top usb tester search terms

  • usb tester62K/yr
  • usb c tester19K/yr
  • usb messgerät17K/yr
  • usb tester messgerät14K/yr
  • usb c messgerät14K/yr
  • usb strommessgerät9K/yr
  • usb power meter8K/yr
  • usb multimeter7K/yr
  • usb messgerät mit anzeige7K/yr
  • usb c tester messgerät5K/yr
All search terms

Top usb tester 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%4%€7K8%€13K12%€20K16%€26K101001K10K Reviews — right = deep review moat Market 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.

What buyers say about usb tester

What buyers praise and complain about, mined from review topics.

What buyers love

Benutzerfreundlichkeit18%

“Ein sehr hilfreiches Tool”

beworben Vs Tatsächliches Produkt15%

“Produkt macht was es soll”

Qualität insgesamt10%

“Produkt ok”

Aufladen9%

“das Handy das Ladegerät läd.”

Effizienz8%

“Funzt”

Preis-Leistungs-Verhältnis7%

“Preis/Leistung super”

Gesamt anzeigen5%

“Super Display”

Buchse/Anschluss/Stecker5%

“gute USB C Adapter”

Funktionalität insgesamt2%

“Wichtiges Tool um die Leistung der Ladekabel zu testen”

Akkulaufzeit2%

“Alle relevanten Anschlüsse vorhanden und kann auch mit Batterie genutzt werden, super”

What buyers complain about

Funktionalität insgesamt9%

“Hält leider nicht was er Verspricht”

Aufladen9%

“Misst zuverlässig die Ladegeschwindigkeit”

Preis-Leistungs-Verhältnis8%

“Im Vergleich relativ teuer”

Qualität insgesamt6%

“welche Schrott sind”

Anleitung/Benutzerhandbuch/Fehlerbehebung6%

“Adapter & Anleitung fehlen”

Gesamtgröße5%

“- Klein/kompakt”

Haltbarkeit5%

“Nach einem Jahr defekt”

Akkulaufzeit5%

“Batterie hält keine 24Stunden”

Benutzerfreundlichkeit4%

“nicht wirklich nutzbringend”

Gesamt anzeigen3%

“Display wird immer wieder schwarz”

Top return reasons

Funktionalität insgesamt26%
Defekt Material/Teile9%
Gesamt anzeigen9%
Buchse/Anschluss/Stecker6%
Aufladen6%
Kompatibilität – insgesamt6%
beworben Vs Tatsächliches Produkt5%
Preis-Leistungs-Verhältnis5%
Gesamtgröße5%
Konnektivität – insgesamt4%

Common questions

Is usb tester profitable to sell on Amazon Germany?
The niche generates €163K/yr across 26 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is -25.3%. Flapen's verdict: Worth a look (51/100).
How competitive is the usb tester niche?
12 brands and 16 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in usb tester?
Top complaints mined from reviews: Funktionalität insgesamt, Aufladen, Preis-Leistungs-Verhältnis. The return rate is 1.3%.
When does demand for usb tester peak?
Demand peaks in Jan; the busiest month runs 1.7× the quietest.
What does it cost to enter the usb tester niche?
Listings span €5.22–€64.68; the average listing price is €15.63 (sweet spot $15–$100). The average incumbent carries 450 reviews — the moat a new listing must climb.