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28

20tb

Skip it

A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 44Conversion 0Competition 0Returns 100Price range 0Avg price 0Brand share 0Review moat 75Quality gap 80

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Review moat

Great500

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+14.8%

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

Market size

Bad$0

$0/yr · 5K searches

Conversion

Bad0.0%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad$570.50

avg listing price — sweet spot $15–$100

Price range

Bad$527.53–$632.48

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

According to Flapen's Amazon Singapore niche tracking, 20tb is a $0/yr Amazon Singapore market (5K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 28/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

20tb market data

Units sold / yr
0–100
avg 0–100/product
Revenue / yr
$0–$57K
units × avg price
Conversion rate
0.0%
Avg BSR
#19
Page quality
0%
Prime
50%
Sponsored
25%
Out of stock
50.6%
Avg brand age
64 months
Avg seller age
45 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 falling

Sellers

9

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

0%

  • Seagate82%
  • Toshiba18%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +14.8% search growth over the last 90 days.
400300Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Oct, Nov, Dec · busiest ÷ quietest = 2.4×

Top 20tb search terms

  • 20tb hdd2K/yr
  • 20tb2K/yr
  • hdd 20tb408/yr
All search terms

Top 20tb 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%15%$030%$045%$060%$0101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 4 tracked products in this niche — three views at once, no toggling.

What buyers say about 20tb

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

Top return reasons

Connectivity-Overall100%

Common questions

Is 20tb profitable to sell on Amazon Singapore?
The niche generates $0/yr across 4 tracked products. 90-day search growth is +14.8%. Flapen's verdict: Skip it (28/100).
How competitive is the 20tb niche?
2 brands and 9 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
When does demand for 20tb peak?
Demand peaks in Oct–Nov–Dec; the busiest month runs 2.4× the quietest.
What does it cost to enter the 20tb niche?
Listings span $527.53–$632.48; the average listing price is $570.50 (sweet spot $15–$100). The average incumbent carries 500 reviews — the moat a new listing must climb.