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54

tf card 128gb

Worth a look

Shows a sweet-spot price point ($28.83 avg), but a deep review moat (27,232 avg reviews) keeps it on the watch list.

Market size 31Growth 24Conversion 80Competition 55Returns 69Price range 88Avg price 95Brand share 76Review moat 12Quality gap 48

Avg price

Incredible$28.83

avg listing price — sweet spot $15–$100

Price range

Great$11.96–$48.73

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

Conversion

Great8.4%

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

Brand share

Great59%

top-5 brand share — no brand owns this niche

Returns

Good2.2%

return rate — above 5% kills the launch gate

Competition

Good52%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$142K

$142K/yr · 59K searches

Growth

Bad-1.8%

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

Review moat

Bad27,231.8

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, tf card 128gb is a $142K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Aug–Sep–Dec. Verdict: Worth a look — 54/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

tf card 128gb market data

Units sold / yr
6K–8K
avg 250–500/product
Revenue / yr
$173K–$231K
units × avg price
Conversion rate
8.4%
Avg BSR
#59
Page quality
0%
Prime
100%
Sponsored
83%
Out of stock
10.1%
Avg brand age
35 months
Avg seller age
194 days

Competition & brand share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

79

Top-5 brand share

59%

Top 20: 100%

Top-5 click share

52%

Top 20: 91%

Open market

35%

  • Bliksem16%
  • Yicunxin15%
  • Amazon Basics11%
  • MindStor9%
  • Sandisk8%
  • ZHSWEN7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.8% search growth over the last 90 days.
4K3KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25SepDecMarJunAugNovMarMay

Peak months: Aug, Sep, Dec · busiest ÷ quietest = 2.2×

Top tf card 128gb search terms

  • tf card 128gb42K/yr
  • tf memory card 128gb6K/yr
  • 128gb tf card7K/yr
  • 128 gb tf card3K/yr
All search terms

Top tf card 128gb 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%$6K8%$11K12%$17K16%$23K101001K10K100K1.0M 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 tf card 128gb

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

What buyers love

Value For Money21%

“Decent price”

Quality-Overall17%

“Card Quality excellent”

Advertised Vs Actual Product14%

“As advertised”

Compatibility-Overall9%

“Great for raspberry pi's”

Storage Capacity9%

“Lots of storage”

Data Transfer Speed4%

“Fast transfer speed”

Camera Quality4%

“The best camera I have owned”

Ease Of Use3%

“Very easy to use”

Assembly/Installation3%

“Easily installed”

Size-Overall3%

“Size is accurate”

What buyers complain about

Durability23%

“Failed after a couple months”

Functionality-Overall22%

“Stopped working”

Compatibility-Overall12%

“Chip not compatible”

Quality-Overall8%

“Absolute garbage”

Storage Capacity7%

“Storage problem”

Value For Money5%

“the price was so low”

Advertised Vs Actual Product3%

“misleading”

Data Transfer Speed2%

“The processing speed on these is horrible”

Camera Quality1%

“This camera doesnt work”

Size-Overall1%

“possible incorrect size”

Top return reasons

Functionality-Overall27%
Compatibility-Overall24%
Size-Overall16%
Value For Money10%
Storage Capacity4%
Camera Quality4%
Defective Material/Parts3%
Advertised Vs Actual Product3%
Computation Performance2%
Product Condition1%

Common questions

Is tf card 128gb profitable to sell on Amazon United States?
The niche generates $142K/yr across 30 tracked products. 10 of 10 products launched in the last 360 days are still selling. 90-day search growth is -1.8%. Flapen's verdict: Worth a look (54/100).
How competitive is the tf card 128gb niche?
20 brands and 79 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 59% of demand.
What do buyers complain about in tf card 128gb?
Top complaints mined from reviews: Durability, Functionality-Overall, Compatibility-Overall. The return rate is 2.2%.
When does demand for tf card 128gb peak?
Demand peaks in Aug–Sep–Dec; the busiest month runs 2.2× the quietest.
What does it cost to enter the tf card 128gb niche?
Listings span $11.96–$48.73; the average listing price is $28.83 (sweet spot $15–$100). The average incumbent carries 27,232 reviews — the moat a new listing must climb.