Is 128gb micro sd card profitable to sell on Amazon United States?

The niche generates $38.8M/yr across 61 tracked products. 16 of 16 products launched in the last 360 days are still selling. 90-day search growth is +8.9%. Flapen's verdict: Launch it (61/100).

How competitive is the 128gb micro sd card niche?

19 brands and 154 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in 128gb micro sd card?

Top complaints mined from reviews: Functionality-Overall, Durability, Compatibility-Overall. The return rate is 2.0%.

When does demand for 128gb micro sd card peak?

Demand peaks in Mar–Apr–May–Jun–Jul; the busiest month runs 9.3× the quietest.

What does it cost to enter the 128gb micro sd card niche?

Listings span $11.82–$117.69; the average listing price is $28.88 (sweet spot $15–$100). The average incumbent carries 55,373 reviews — the moat a new listing must climb.

128gb micro sd card

Launch it

A $38.8M/yr market growing +8.9% this quarter with returns at 2.0% — clears our launch bar.

Market size

Incredible$38.8M

$38.8M/yr · 22.5M searches

Avg price

Incredible$28.88

avg listing price — sweet spot $15–$100

Competition

Great35%

top-5 click share — an open shelf

Price range

Great$11.82–$117.69

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

Returns

Great2.0%

return rate — above 5% kills the launch gate

Conversion

Good6.0%

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

Growth

Okay+8.9%

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

Brand share

Okay87%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad55,372.72

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, 128gb micro sd card is a $38.8M/yr Amazon United States market (22.5M searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Mar–Apr–May–Jun–Jul. Verdict: Launch it — 61/100.

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

128gb micro sd card market data

Units sold / yr: 1.0M–1.0M; avg 80,000–100,000/product
Revenue / yr: $28.9M–$28.9M; units × avg price
Conversion rate: 6.0%
Avg BSR: #20
Page quality: 0%
Prime: 100%
Sponsored: 62%
Out of stock: 0.0%
Avg brand age: 47 months
Avg seller age: 175 days

Competition & brand share

Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.

Brands

19 rising

Sellers

154

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

35%

Top 20: 69%

Open market

11%

Sandisk63%
Amazon Basics14%
Gigastone5%
MindStor3%
SP Silicon Power2%
KEXIN2%
Open — no brand owns it (13 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.9% search growth over the last 90 days.

Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 9.3×

Open Trend

Top 128gb micro sd card search terms

micro sd card7.4M/yr +6.2%4.4% conv.
sd card6.8M/yr +7.8%3.7% conv.
memory card1.0M/yr +8.7%2.6% conv.
micro sd910K/yr +11.7%3.7% conv.
micro sd card 128gb654K/yr +23.6%5.8% conv.
128gb micro sd card743K/yr +4.0%4.5% conv.
sd card for camera474K/yr +57.6%4.4% conv.
microsd528K/yr +18.4%4.3% conv.
sd cards521K/yr +10.8%2.3% conv.
microsd card415K/yr +14.6%4.7% conv.

All search terms

Top 128gb 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SANDISK 256GB Ultra microSDXC UHS-I Memory Card with Adapter - Up to 150MB/s C10 U1 Full HD A1 MicroSD Card - SDSQUAC-256G-GN6MA

Sandisk$32.114.7★267,305 rev

SANDISK 128GB Extreme PRO SDXC UHS-I Memory Card - C10 U3 V30 4K UHD SD Card - SDSDXXD-128G-GN4IN

Sandisk$29.864.8★88,793 rev

SANDISK 128GB Ultra microSD UHS-I Card - Up to 195MB/s Read Speed Full HD Video V10 U1 C10 A5 - SDSQUJQ-128G-GZ6MA

Sandisk$34.404.7★689 rev

Amazon Basics microSDXC Memory Card with Full Size Adapter A2 U3 Read Speed up to 100 MB/s 128GB Black

Amazon Basics$15.324.7★153,587 rev

Amazon Basics microSDXC Memory Card with Full Size Adapter A2 U3 Read Speed up to 100 MB/s 64GB Black (2pack)

Amazon Basics$22.134.7★153,587 rev

Newest

by launch date

SANDISK 128GB Extreme microSD UHS-I Card - Up to 245MB/s Read Speed and 120MB/s Write Speed 5.3K Video 4K UHD Video high-Performance for Action cams Drones Android Devices - SDSQXH9-128G-GZ6MA

Sandisk$39.60147,387 rev

4mo ago

SANDISK 128GB Ultra microSD UHS-I Card - Up to 195MB/s Read Speed Full HD Video V10 U1 C10 A5 - SDSQUJQ-128G-GZ6MA

Sandisk$34.40689 rev

6mo ago

SANDISK 64GB Ultra microSD UHS-I Card - Up to 145MB/s Read Speed Full HD Video V10 U1 C10 A6 - SDSQUJQ-064G-GZ6MA

Sandisk$23.90689 rev

6mo ago

Samsung P9 Express microSD Express Card 256GB microSDXC Memory Card Up to 800 MB/s for Nintendo-Switch 2 (MB MK256T/AM)

Samsung$39.011,917 rev

9mo ago

Micro SDXC 128GB Memory Card MindStor 90MB/s Read Speed TF Card with Adapter U1 A1 HD 1080P Video Loop Recording Support for Security Camera Dash Cam 1 Pack

MindStor$21.90393 rev

9mo ago

What buyers say about 128gb micro sd card

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

What buyers love

Value For Money19%

“Decent price”

Quality-Overall17%

“Best quality”

Advertised Vs Actual Product14%

“Exactly what I expected”

Storage Capacity10%

“Great storage capacity”

Compatibility-Overall10%

“Compatible with almost all devices”

Data Transfer Speed5%

“Fast write speed”

Camera Quality4%

“The best camera I have owned”

Ease Of Use3%

“Very easy to use”

Durability3%

“So far it is still working”

Size-Overall2%

“Size is accurate”

What buyers complain about

Functionality-Overall22%

“Did not work”

Durability19%

“Broke”

Compatibility-Overall11%

“Compatibility issues”

Value For Money8%

“Too expensive”

Quality-Overall8%

“Low quality products”

Storage Capacity5%

“Storage problem”

Advertised Vs Actual Product3%

“False advertisement”

Product Condition3%

“Looks used”

Computation Performance2%

“So slow”

Data Transfer Speed2%

“speed is a bit slow in transferring data”

Top return reasons

Size-Overall26%

Compatibility-Overall22%

Functionality-Overall21%

Value For Money11%

Storage Capacity3%