sd to usb
Skip itPrices mostly outside the sweet spot ($5.02–$13.01) — this niche doesn't clear our bar today.
Conversion
Incredible16.2%search→purchase rate — share of searches ending in a sale
Returns
Great1.2%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+3.8%90-day search growth — must beat 0% to launch
Avg price
Bad$8.45avg listing price — sweet spot $15–$100
Review moat
Bad12,085.64avg incumbent reviews — the moat a new listing must climb
Competition
Bad82%top-5 click share — a locked-up shelf
Brand share
Bad94%top-5 brand share — brand-locked demand
Market size
Bad$39K$39K/yr · 29K searches
Price range
Bad$5.02–$13.01cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, sd to usb is a $39K/yr Amazon United States market (29K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 34/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
sd to usb market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $34K–$42K
- units × avg price
- Conversion rate
- 16.2%
- Avg BSR
- #35
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 0.0%
- Avg brand age
- 37 months
- Avg seller age
- 206 days
Competition & brand share
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 rising
Sellers
15
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
82%
Top 20: 100%
Open market
3%
- Acer29%
- Wansurs28%
- uni28%
- DSRKE5%
- Anker4%
- UGREEN3%
- Open — no brand owns it (2 brands, 3%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +3.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top sd to usb search terms
- sd to usb18K/yr
- usb to sd6K/yr
- sd card adapter for pc3K/yr
- sandisk to usb adapter2K/yr
- sd adapter for laptop894/yr
Top sd to usb 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.
All 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
USB3.0 Micro SD Card Reader 5Gbps 2-in-1 SD Card Reader to USB Adapter Wansurs Memory Card Reader for SDXC SDHC MMC RS-MMC Micro SDXC Micro SD Micro SDHC and UHS-I Cards (1Pack Black)
Wansurs$5.214.5★8,285 rev

acer SD Card Reader USB C Dual Slots USB 3.0 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
Acer$10.214.7★10,287 rev

uni SD Card Reader High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC Compatible with MacBook Pro/Air Chromebook Android Galaxy
uni$9.504.6★35,392 rev

uni SD Card Reader High-Speed USB 3.0 to Micro SD Card Adapter Aluminum Computer Memory Card Reader Dual Slots for SD/SDXC/SDHC/MMC/Micro SDXC/TF/Micro SDHC | Laptop PC and More
uni$11.174.6★6,918 rev

Acer SD Card Reader USB A 3.0 to Micro Memory Card Reader Aluminum Dual Slot SD to USB Adapter for Computer PC Laptop and Type A Devices Compatible with SD/Micro SDXC/SDXC/SDHC/MMC/TF Cards
Acer$13.014.7★1,371 rev
Newest
by launch date
DSRKE SD Card Reader Dual Slots USB 3.0 USB C to Micro SD Card Adapter
DSRKE$8.231,348 rev

Acer SD Card Reader USB A 3.0 to Micro Memory Card Reader Aluminum Dual Slot SD to USB Adapter for Computer PC Laptop and Type A Devices Compatible with SD/Micro SDXC/SDXC/SDHC/MMC/TF Cards
Acer$13.011,371 rev

SD Card Reader USB C Dual Slots USB 3.0 Type C to Micro SD Card Adapter Memory Card Reader for MicroSD SDHC SDXC Compatible with iPhone 17 16 Laptop PC MacBook Pro/Air iPad Pro Android Samsung S25 A17
Radidi$5.02205 rev

UANTIN SD Card Reader USB C Dual Slots USB A & USB C Memory Card Adapter for MicroSD SDHC SDXC Simultaneous Read & Write Slot Compatible Laptop iPhone 17 MacBook Neo/Pro/Air iPad Pro Android
UANTIN$8.09572 rev

acer SD Card Reader USB C Dual Slots USB 3.0 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
Acer$10.2110,287 rev
Trending
90-day click momentum
DSRKE SD Card Reader Dual Slots USB 3.0 USB C to Micro SD Card Adapter
DSRKE$8.234.5★

acer SD Card Reader USB C Dual Slots USB 3.0 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
Acer$10.214.7★

Acer SD Card Reader USB A 3.0 to Micro Memory Card Reader Aluminum Dual Slot SD to USB Adapter for Computer PC Laptop and Type A Devices Compatible with SD/Micro SDXC/SDXC/SDHC/MMC/TF Cards
Acer$13.014.7★

UANTIN SD Card Reader USB C Dual Slots USB A & USB C Memory Card Adapter for MicroSD SDHC SDXC Simultaneous Read & Write Slot Compatible Laptop iPhone 17 MacBook Neo/Pro/Air iPad Pro Android
UANTIN$8.094.6★

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)
Wansurs$5.034.4★
What buyers say about sd to usb
What buyers praise and complain about, mined from review topics.What buyers love
“As advertised”
“Solid build quality”
“Good for many uses”
“Good value for money”
“Good transfer speeds”
“I had zero issues with compatibility or anything else related to the product”
“easy to carry”
“Works great”
“its compact design”
“Compact size”
What buyers complain about
“DOESNT WORK”
“stopped working after about ten uses”
“Poor connection”
“it is not compatible with that”
“So not sure if there is a quality control issue”
“Doesn't Transfer”
“The body is a little wide”
“not worth returning because the price”
“Gets very hot”
“Port was loose”
Top return reasons
Common questions
- Is sd to usb profitable to sell on Amazon United States?
- The niche generates $39K/yr across 11 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +3.8%. Flapen's verdict: Skip it (34/100).
- How competitive is the sd to usb niche?
- 8 brands and 15 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in sd to usb?
- Top complaints mined from reviews: Functionality-Overall, Durability, Connectivity-Overall. The return rate is 1.2%.
- When does demand for sd to usb peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the sd to usb niche?
- Listings span $5.02–$13.01; the average listing price is $8.45 (sweet spot $15–$100). The average incumbent carries 12,086 reviews — the moat a new listing must climb.