Is u3 micro sd card profitable to sell on Amazon United Kingdom?

The niche generates £486K/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.3%. Flapen's verdict: Worth a look (50/100).

How competitive is the u3 micro sd card niche?

6 brands and 259 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 98% of demand.

What do buyers complain about in u3 micro sd card?

Top complaints mined from reviews: Compatibility-Overall, Durability, Functionality-Overall. The return rate is 1.2%.

When does demand for u3 micro sd card peak?

Demand peaks in Feb–Apr–Jun; the busiest month runs 2.8× the quietest.

What does it cost to enter the u3 micro sd card niche?

Listings span £8.31–£102.68; the average listing price is £26.05 (sweet spot $15–$100). The average incumbent carries 33,804 reviews — the moat a new listing must climb.

u3 micro sd card

Worth a look

Shows a sweet-spot price point ($26.05 avg), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.

Avg price

Incredible£26.05

avg listing price — sweet spot $15–$100

Returns

Great1.2%

return rate — above 5% kills the launch gate

Price range

Great£8.31–£102.68

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

Conversion

Great7.2%

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

Market size

Good£486K

£486K/yr · 258K searches

Competition

Okay59%

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

Growth

Okay+8.3%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Review moat

Bad33,803.63

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad98%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, u3 micro sd card is a £486K/yr Amazon United Kingdom market (258K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Feb–Apr–Jun. Verdict: Worth a look — 50/100.

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

u3 micro sd card market data

Units sold / yr: 15K–20K; avg 1,000–1,250/product
Revenue / yr: £391K–£521K; units × avg price
Conversion rate: 7.2%
Avg BSR: #17
Page quality: 0%
Prime: 100%
Sponsored: 74%
Out of stock: 3.6%
Avg brand age: 54 months
Avg seller age: 175 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 rising

Sellers

259

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

59%

Top 20: 100%

Open market

SanDisk77%
Samsung10%
Nextbase5%
Lexar4%
Amazon Basics3%
Integral2%

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — +8.3% search growth over the last 90 days.

Peak months: Feb, Apr, Jun · busiest ÷ quietest = 2.8×

Open Trend

Top u3 micro sd card search terms

sandisk extreme47K/yr +0.6%4.0% conv.
high endurance micro sd card31K/yr +25.3%4.8% conv.
nextbase sd card29K/yr -6.7%4.4% conv.
sandisk high endurance 128gb10K/yr +303.1%9.0% conv.
sandisk high endurance19K/yr +12.8%7.5% conv.
u3 micro sd card21K/yr -22.4%5.6% conv.
samsung pro endurance micro sd card9K/yr +28.0%4.0% conv.
sandisk extreme micro sd card11K/yr -17.2%8.5% conv.
high endurance sd card7K/yr +51.4%3.5% conv.
samsung pro endurance8K/yr -0.6%3.0% conv.

All search terms

Top u3 micro sd card 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SanDisk 128GB High Endurance microSDXC card for IP cams & dash cams + SD adapter up to 10 000 Hours Full HD / 4K videos up to 100 MB/s UHS-I Class 10 U3 V30

SanDisk£20.634.6★36,846 rev

SanDisk 128GB Extreme microSDXC card +SD adapter microSD card for smartphones action cameras drones V30 up to 190 MB/s SanDisk QuickFlow Technology RescuePro Deluxe UHS-I 4k V30 A2 U3

SanDisk£16.454.7★101,677 rev

SanDisk HIGH ENDURANCE Video Monitoring for Dashcams & Home Monitoring 64 GB microSDXC Memory Card + SD Adaptor Up to 100 MB/s read and 40 MB/s Write Class 10 U3 V30 White

SanDisk£14.624.7★9,602 rev

Samsung PRO Endurance 256GB microSDXC UHS-I U3 100MB/s Video Monitoring Memory Card with Adapter (MB-MJ256KA)

Samsung£40.594.7★2,529 rev

SanDisk 256GB High Endurance microSDXC card for IP cams & dash cams + SD adapter up to 20 000 Hours Full HD / 4K videos up to 100 MB/s UHS-I Class 10 U3 V30

SanDisk£36.824.7★21,808 rev

Newest

by launch date

Integral 128GB High Endurance microSD Card for CCTV Dash Cam & Security Cameras 4K Video| Up to 24 000 Hours Continuous Recording

Integral£24.6060 rev

4mo ago

Lexar 64GB Micro SD Card E Series microSDXC UHS-I Flash Memory Card with Adapter - Up to 100MB/s A1 U3 Class10 V30 High Speed TF Card

Lexar£13.4547,296 rev

3y ago

Lexar 64GB Micro SD Card microSDXC UHS-I Card W/O SD Adapter microSD Memory Card up to 100MB/s Read A1 Class 10 U3 V30 TF Card for Smartphones/Tablets/IP Cameras

Lexar£8.3123,431 rev

3y ago

Samsung PRO Endurance 256GB microSDXC UHS-I U3 100MB/s Video Monitoring Memory Card with Adapter (MB-MJ256KA)

Samsung£40.592,529 rev

4y ago

Samsung PRO Endurance 128GB microSDXC UHS-I U3 100MB/s Video Monitoring Memory Card with Adapter (MB-MJ128KA)

Samsung£24.822,529 rev

4y ago

What buyers say about u3 micro sd card

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

What buyers love

Quality-Overall24%

“Decent quality”

Value For Money16%

“Good value for money”

Advertised Vs Actual Product13%

“As advertised”

Storage Capacity8%

“Good storage”

Compatibility-Overall7%

“compatible”

Camera Quality6%

“Usefull and fitted my camera”

Data Transfer Speed5%

“Get good speeds on transfers”

Durability3%

“Always reliable”

Ease Of Use3%

“Easy to use”

Assembly/Installation2%

“Easy to install”

What buyers complain about

Compatibility-Overall22%

“Not working with Raspberry Pi5”

Durability16%

“then broke”

Functionality-Overall15%

“Didnt work”

Value For Money12%

“Although not the cheapest option”

Quality-Overall7%

“Which leaves the conclusion that a reputable manufacturer with good historical reputation is producing really bad products with insufficient quality control”

Data Transfer Speed4%

“I'm only getting 80mb/sec transfer speed”

Camera Quality2%

“Nextbase are not the best dash camera”

Display Colors2%

“On closer inspection this card doesnt show any similarity to all my other Sandisk cards the font of Sandisk isnt the same the colours used on the card arent the same”

Rusts/Corrodes2%

“i rust sandisk more then many other companys with sd cards”

Storage Capacity2%

“it shows as zero capacity”

Top return reasons

Compatibility-Overall35%

Functionality-Overall26%

Size-Overall10%

Defective Material/Parts5%

Storage Capacity4%

Value For Money3%

Camera Quality3%

Connectivity-Overall2%

Product Condition2%

Advertised Vs Actual Product2%

Common questions

Is u3 micro sd card profitable to sell on Amazon United Kingdom?: The niche generates £486K/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.3%. Flapen's verdict: Worth a look (50/100).
How competitive is the u3 micro sd card niche?: 6 brands and 259 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in u3 micro sd card?: Top complaints mined from reviews: Compatibility-Overall, Durability, Functionality-Overall. The return rate is 1.2%.
When does demand for u3 micro sd card peak?: Demand peaks in Feb–Apr–Jun; the busiest month runs 2.8× the quietest.
What does it cost to enter the u3 micro sd card niche?: Listings span £8.31–£102.68; the average listing price is £26.05 (sweet spot $15–$100). The average incumbent carries 33,804 reviews — the moat a new listing must climb.