Is 4gb sd card profitable to sell on Amazon United States?

The niche generates $347K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +19.1%. Flapen's verdict: Worth a look (50/100).

How competitive is the 4gb sd card niche?

9 brands and 53 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 90% of demand.

What do buyers complain about in 4gb sd card?

Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Size-Overall. The return rate is 1.5%.

When does demand for 4gb sd card peak?

Demand peaks in Jul; the busiest month runs 2.5× the quietest.

What does it cost to enter the 4gb sd card niche?

Listings span $9.08–$31.47; the average listing price is $15.92 (sweet spot $15–$100). The average incumbent carries 4,696 reviews — the moat a new listing must climb.

4gb sd card

Worth a look

Shows searches that convert (10.8% search→purchase), but a concentrated shelf (top 5 take 75% of clicks) keeps it on the watch list.

Conversion

Great10.8%

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

Returns

Great1.5%

return rate — above 5% kills the launch gate

Avg price

Great$15.92

avg listing price — sweet spot $15–$100

Price range

Good$9.08–$31.47

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

Market size

Good$347K

$347K/yr · 201K searches

Growth

Okay+19.1%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Bad90%

top-5 brand share — brand-locked demand

Review moat

Bad4,696.21

avg incumbent reviews — the moat a new listing must climb

Competition

Bad75%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, 4gb sd card is a $347K/yr Amazon United States market (201K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jul. Verdict: Worth a look — 50/100.

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

4gb sd card market data

Units sold / yr: 20K–25K; avg 1,000–1,250/product
Revenue / yr: $318K–$398K; units × avg price
Conversion rate: 10.8%
Avg BSR: #72
Page quality: 0%
Prime: 86%
Sponsored: 79%
Out of stock: 0.0%
Avg brand age: 73 months
Avg seller age: 189 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

Sinobright64%
INDMEM11%
Cloudisk7%
Gigastone5%
Verbatim3%
Transcend3%
Open — no brand owns it (3 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +19.1% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 2.5×

Open Trend

Top 4gb sd card search terms

2gb sd card85K/yr +13.6%9.8% conv.
4gb sd card27K/yr +25.7%2.7% conv.
2 gb sd card27K/yr +15.9%11.2% conv.
sd card 2gb21K/yr +0.2%10.0% conv.
sd card 4gb12K/yr +41.9%3.1% conv.
4 gb sd card9K/yr +47.8%4.8% conv.
sd card 2 gb5K/yr +59.8%11.1% conv.
2gb sd card for camera3K/yr +43.9%13.0% conv.
sandisk 2gb sd card5K/yr +25.9%8.4% conv.
2gb sd card sandisk3K/yr +10.2%9.4% conv.

All search terms

Top 4gb 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 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

INDMEM SD Card 2GB Class 4 Flash Memory Card 2G SLC Stanard Secure Digital Cards (1PC)

Sinobright$9.944.7★1,147 rev

INDMEM 2 Pack SD Card 2GB Class 4 Flash Memory Card 2G SLC Stanard Secure Digital Cards (2PC)

Sinobright$15.724.7★1,147 rev

INDMEM 2GB SD Card 2GB Class 4 Flash Memory Card 2G SLC Standard Secure Digital Cards for Old Digital Camera and Trail Camera(1Pack)

INDMEM$9.944.7★109 rev

INDMEM 2GB SD Card 2 Pack 2GB Class 4 Flash Memory Card 2G SLC Standard Secure Digital Cards for Old Digital Camera and Trail Camera

INDMEM$16.104.7★109 rev

GIGASTONE 4GB SD Card Speed Up to 20MB/s SDHC UHS-I Class 4 Memory Card for Photo Video Music Voice File DSLR Camera DSC Camcorder Recorder Playback PC Mac POS with 1 Mini case

Gigastone$12.294.6★2,597 rev

Newest

by launch date

INDMEM SD Card 4GB SDHC Class 4 Flash Memory Card 4 GB Digital Camera Cards 1Pack

Sinobright$10.48189 rev

7mo ago

INDMEM SD Card 2GB 6 Packs Class 4 2GB Flash Memory Card MLC Standard Secure Digital Cards Camera Card

READYXIO$31.4776 rev

1y ago

INDMEM 2GB SD Card 2GB Class 4 Flash Memory Card 2G SLC Standard Secure Digital Cards for Old Digital Camera and Trail Camera(1Pack)

INDMEM$9.94109 rev

1y ago

INDMEM 2GB SD Card 2 Pack 2GB Class 4 Flash Memory Card 2G SLC Standard Secure Digital Cards for Old Digital Camera and Trail Camera

INDMEM$16.10109 rev

1y ago

INDMEM 5 Pack SD Card 2GB Class 4 Flash Memory Card 2G SLC Stanard Secure Digital Cards

Sinobright$26.8694 rev

4y ago

What buyers say about 4gb sd card

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

What buyers love

Compatibility-Overall29%

“It was fully compatible”

Camera Quality18%

“Great for old digital cameras”

Advertised Vs Actual Product14%

“Works as expected”

Storage Capacity8%

“Good price little storage”

Value For Money7%

“They weren't very expensive”

Size-Overall5%

“Fits”

Ease Of Use5%

“Fast and easy to use”

Functionality-Overall4%

“This memory card worked for its intended usage”

Durability2%

“It seems durable”

Data Transfer Speed1%

“Fast and easy to use”

What buyers complain about

Functionality-Overall26%

“Didnt work”

Compatibility-Overall17%

“Neither card worked on any device I tried them in”

Size-Overall10%

“this card is actually a 4GB card formatted to look smaller”

Quality-Overall9%

“Cheap and work”

Value For Money9%

“I'd say it's almost too expensive for what it is”

Advertised Vs Actual Product7%

“False advertisement”

GPS7%

“just too large for my GPS”

Storage Capacity7%

“It has a fake memory storage of 2gb, in fact, it has 3.69 GB”

Top return reasons

Size-Overall32%

Compatibility-Overall30%

Functionality-Overall15%

Value For Money6%

Camera Quality6%

Advertised Vs Actual Product3%

Storage Capacity2%

Defective Material/Parts2%

Product Condition1%

Computation Performance1%

Common questions

Is 4gb sd card profitable to sell on Amazon United States?: The niche generates $347K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +19.1%. Flapen's verdict: Worth a look (50/100).
How competitive is the 4gb sd card niche?: 9 brands and 53 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in 4gb sd card?: Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Size-Overall. The return rate is 1.5%.
When does demand for 4gb sd card peak?: Demand peaks in Jul; the busiest month runs 2.5× the quietest.
What does it cost to enter the 4gb sd card niche?: Listings span $9.08–$31.47; the average listing price is $15.92 (sweet spot $15–$100). The average incumbent carries 4,696 reviews — the moat a new listing must climb.

4gb sd card

4gb sd card market data

Competition & brand share

Demand & seasonality

Top 4gb sd card search terms

Top 4gb sd card products on Amazon

Top sellers

Newest

Trending

What buyers say about 4gb sd card

What buyers love

What buyers complain about

Top return reasons

Common questions

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