Card Reader Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Card Reader sales on Amazon US totaled 140,050 units in July 2026 (▼ 2.4% vs. the prior month), generating an estimated $2,240,901 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 60.7% of unit volume and 46.1% of revenue, while a typical listing is priced at $25.27. The keyword itself pulled 22,374 Amazon queries over the same period (▲ 2.4% MoM).
Zooming out to the 12-month window ending July 2026, the card reader Top 50 moved 1,621,250 units and $27,175,950 in cumulative sales — an average of 135,104 units and $2,264,662 per month. Monthly throughput topped out at 150,000 units in November 2025 and dipped to 87,500 in May 2026, leaving the latest reading 1.3% higher than August 2025.
Card Reader Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
140.1K
▼ 2.4% MoM
Monthly Revenue 2026/07
$2.2M
▼ 19.5% MoM
Top 10 Market Share 2026/07
60.7%
Card Reader Market Share & Sales Concentration on Amazon US — July 2026
The most-sold card reader listing on Amazon US in July 2026 is ASIN B07NW8RPYN (Brand: Anker), which sold 10,000 units at $17.99 apiece — equal to 7.1% of every unit tracked in this report.
The Top 10 ASINs account for 85,000 units and $1,033,490 in July 2026 — 60.7% of unit volume and 46.1% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Card Reader' on Amazon
July 2026
Is 60.7% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
Powered by ASINSIGHT MCP · Grounded in ASINSIGHT Amazon data
Top 5 Volume Share breakdown
B07NW8RPYN
Anker SD Card Reader USB C, Dual Slots USB Type C to Micro SD Card Adapter | For iPhone and Laptops, Card Viewer with Dual Slots for SDXC/SDHC/SD/Micro SDXC/MicroSD/Micro SDHC/UHS-I Cards
10K
▲ 0.0%vs. prior month
$143.8K
latest month
12-month trend
B081VHSB2V
uni SD Card Reader,High Speed USB C to Micro SD Memory Card Adapter USB 3.0 | Dual Slots, Memory Card Reader, for SD/Micro SD/SDHC/SDXC/MMC, Card Reader for MacBook Pro/Air, Chromebook, Android Galaxy
10K
▲ 0.0%vs. prior month
$95.6K
latest month
12-month trend
B0BWK8QVZ2
SZHAIYIJIN SD Card Reader for iPhone, Memory Card Reader with USB Camera Adapter Plug and Play Trail Game Camera Viewer Supports SD and TF Card MicroSD Card Adapter for iPad No App Required
10K
▲ 0.0%vs. prior month
$91.2K
latest month
12-month trend
B0DMSNJ94Y
USB C SD Card Reader, Type C SD Card Reader, Supports SD and MicroSD Memory Card Adapters for iPhone 15 16/iPad/MacBook/Mac, Trail Camera Viewer Plug and Play -2 Slots
10K
▲ 0.0%vs. prior month
$49.9K
latest month
12-month trend
B0DQ71G4G4
acer SD Card Reader USB C, Dual Slots USB Type C to Micro SD Card Adapter | Memory Card Reader for MicroSD, SDHC, SDXC, Compatible with Laptop, PC, iPhone16/15, MacBook Pro/Air, iPad Pro, Android
10K
▲ 0.0%vs. prior month
$99.9K
latest month
12-month trend
B0C29GRRCZ
Square Reader for contactless and chip (2nd Generation)
8K
▼ 20.0%vs. prior month
$294.1K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Card Reader Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Anker is the best-performing card reader brand in July 2026, moving 10,000 units across 1 ASIN for 11.8% of Top 10 volume. uni follows with 10,000 units (11.8%), ahead of SZHAIYIJIN on 10,000 units (11.8%).
Volume is spread across 10 brands, with the top three holding 35.3% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $9.49 to $17.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Anker
1 ASIN in Top 10
11.8%
Units
10K
Revenue
$143.8K
Avg. price
$17.99
B07NW8RPYN
$17.99·★4.6·8.6K revsAnker SD Card Reader USB C, Dual Slots USB Type C to Micro SD Card Adapter | For iPhone and Laptops, Card Viewer with Dual Slots for SDXC/SDHC/SD/Micro SDXC/MicroSD/Micro SDHC/UHS-I Cards
Units sold10K
uni
1 ASIN in Top 10
11.8%
Units
10K
Revenue
$95.6K
Avg. price
$9.49
B081VHSB2V
$9.49·★4.6·35.8K revsuni SD Card Reader,High Speed USB C to Micro SD Memory Card Adapter USB 3.0 | Dual Slots, Memory Card Reader, for SD/Micro SD/SDHC/SDXC/MMC, Card Reader for MacBook Pro/Air, Chromebook, Android Galaxy
Units sold10K
SZHAIYIJIN
1 ASIN in Top 10
11.8%
Units
10K
Revenue
$91.2K
Avg. price
$9.99
B0BWK8QVZ2
$9.99·★4.4·14.1K revsSZHAIYIJIN SD Card Reader for iPhone, Memory Card Reader with USB Camera Adapter Plug and Play Trail Game Camera Viewer Supports SD and TF Card MicroSD Card Adapter for iPad No App Required
Units sold10K
Trending Card Reader Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B0CKQTZB64 booked 7K units at $9.99, with ▲ 40.0% MoM change. On the growth side, B08ZFN6TX4 leads positive momentum with ▲ 300.0% MoM growth on 400 units, with B0B9R7H765 close behind at ▲ 100.0% MoM on 400 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B0CKQTZB64
USB C SD Card Reader for iPhone 15 16/iPad/MacBook/Mac, xdgeLoad USB-C Type C SD Reader Supports SD and MicroSD Memory Card Adapter, Trail Camera Viewer Plug and Play - 2 Slots
Price
$9.99
Rating
4.6
Reviews
3K
Latest month sales
B08ZFN6TX4
Muddy CRV3 HD SD Card Viewer - Durable Water-Resistant Hunting Outdoor SD Card Reader/Viewer with 4.3" LCD Screen & Headphone Jack for Audio - Supports up to 32GB
Price
$49.99
Rating
4.3
Reviews
821
Latest month sales
B0B9R7H765
USB SD Card Reader for PC, 3 Packs Micro SD Card to USB Adapter, Card Reader for Camera Memory Card Reader, Wansurs Card Reader for Laptop (3 Pack USB2.0)
Unlock to view ASIN details and product titles
Price
$4.99
Rating
4.4
Reviews
467
Latest month sales
One Amazon dataset. Two ways to use it.
Every number in this card reader report comes from the Amazon market data ASINSIGHT tracks. Pick how you want to work with it.
Explore the full data
Browse the complete, structured picture in a ready-made interface — and keep tracking it as the market moves.
- Organic vs. ad traffic shifts per product
- Hourly rank and search-volume tracking
- Competitor ASINs and historical trends
Starts with a free ASINSIGHT account
Analyze the data your way
Connect the same data to ChatGPT, Claude or Cursor, then combine any dimensions to answer your own questions.
- Combine product, keyword, sales & ranking data freely
- Follow up in your own words, no fixed reports
- Works in ChatGPT, Claude & Cursor
20,000 credits/mo free, no credit card