uni
uni SD Card Reader
Bottom line: The uni SD Card Reader ($7.59 on Amazon as of 2026-10-07): Dual slots read and write SD plus microSD at the same time, no swapping; main trade-off: memory cards are not included in the box, despite the product images.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Dual slots read and write SD plus microSD at the same time, no swapping
- ✓ Two connectors in one: USB-C and USB 3.0 Type-A, both rated 5 Gbps
- ✓ No drivers on Windows 11/10/8/7/Vista or macOS 10.2+, no external power
- ✓ Covered ends keep dust and liquid off the contacts in a camera bag
Cons
- ✗ Memory cards are not included in the box, despite the product images
- ✗ 5 Gbps is the bus ceiling, not real card speed on SDHC or MMC media
- ✗ No UHS-II support listed, so fast V90 SD cards will run at UHS-I rates
- ✗ Attached cord adds bulk versus a bare thumb-drive-style reader
Manufacturer description
The uni SD Card Reader solves a specific annoyance: swapping between a microSD from a dash cam and a full-size SD from a mirrorless camera without unplugging anything. Two slots run simultaneously, so you can pull footage off both cards in one session, or copy directly from one card to the other. Both the USB-C and USB 3.0 connectors move data at up to 5 Gbps, which uni rates at roughly 1GB in seconds, and the reader falls back cleanly to USB 2.0 and USB 1.1 ports on older machines. Format coverage is broad: SD, SDHC, SDXC, MMC, RS-MMC, microSD, microSDHC, and microSDXC. There is no driver…
SpecPicks Verdict
SpecPicks scored uni SD Card Reader using a rating × review-volume × price-fit model applied to published specs and reviews across the storage adapters category. uni's storage adapters lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for storage adapters of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Can I use both card slots at the same time?
Yes. uni lists simultaneous reading and writing on both slots, so you can copy from a microSD to an SD card without unplugging or swapping.
Does this work with a MacBook Pro or MacBook Air?
Yes. It lists MacBook Pro 2016 through 2023 and MacBook 2015 through 2022, and needs no driver on macOS 10.2 or later. The USB-C end plugs straight in.
What card formats does it accept?
SD, SDHC, SDXC, MMC, and RS-MMC in the full-size slot, plus microSD, microSDHC, and microSDXC in the micro slot.
How fast is the transfer?
Both the USB-C and USB 3.0 interfaces are rated up to 5 Gbps, which uni describes as moving a 1GB file in seconds. Actual speed depends on your card's own rating.
Is there a warranty, and are memory cards included?
uni lists an 18-month warranty with 24/7 customer service. Memory cards are not included; the cards pictured in the listing are for illustration only.
Key Features
- 【USB 3.0 + USB C】 Both interfaces support high-speed data transfer up to 5 Gbps, allowing you easily transfer 1G files in seconds. Dual Card Slots, support SDXC, SDHC, SD, MMC, RS-MMC, Micro SDXC, Micro SD and Micro SDHC cards from Camera/ Gopro/ Dash Cam/ Surveillance camera. Backwards compatible with USB 2.0 and USB 1.1. * Memory cards shown in images are not included in the product.
- 【Double duty】 Simultaneously reading and writing on two cards to save the constant plugging and pulling of plugs. Enjoy fast photo downloads, smooth video editing and fast 3D Printer file transfers. Double your productivity with simultaneous microSD/SD card access. View recordings of your security cameras, wildlife monitors, private surveillance cameras and car monitors instead of bringing them home to you.
- 【Plug and Play】uni Card Reader for camera memory card has handy covers at both ends to keep out liquid and dust. Its slim profile makes it easy to store in your camera bag or backpack, and the useful cord keeps it from getting lost and provides convenient access to micro/SD cards when needed. No driver is required in Windows 11/10/8/7/Vista or Mac OS X 10.2 and later. No additional power supply is required.
- 【Wide Compatibility】Compatible with iPhone 15 Pro/Pro Max, MacBook Pro (2023~2016), MacBook (2022~2015), iMac Pro (iMac), Acer Aspire Switch 12S/R13, Predator 15/17X, XPS 13/15/17, Alienware 13/15/17, Spectre x360, Microsoft Surface Pro, Book 2, Razer Blade 15/Stealth 13/Pro 17, Samsung Galaxy Tab Pro, S23/ S22 Ultra/ S21/ S20 and most other USB-C / A devices.
- 【No Camera Software Required】uni high speed Memory Card Reader connects directly to your Android phone's USB-C port, allowing you to instantly view your footage and manage photo videos without the need for additional apps or Wi-Fi connections. Share your experiences in real-time and never miss an exciting moment again! uni Micro SD USB Adapter with 24/7 customer service and effortless 18-month 𝗐𝖺𝗋𝗋𝖺𝗇𝗍𝗒. Please rest assured we stand behind our products and customers.
Full Specifications
| Brand | uni |
|---|---|
| Color | Grey |
| Weight | 1g |
| Media Type | MMC, RS-MMC, SD Card, SDHC, SDXC, microSD, microSDHC, microSDXC |
| Model Name | PIXEL |
| Unit Count | 1 Count |
| Connectivity | USB-C, WiFi |
| Compatibility | Switch, Android, iOS, Mac |
| Special Feature | Compact, Plug & Play, Dust Proof |
| Compatible Devices | Camera, Smartphone, Tablet, Laptop |
| Data Transfer Rate | 5 Gigabits Per Second |
| Hardware Interface | USB 3.0, USB Type C |
| Additional Features | Compact, Plug & Play, Dust Proof |
| Warranty Description | 18-month |
| Connectivity Technology | USB Type C, USB Type C USB |
| Item Dimensions L x W x H | 0.67"L x 2.36"W x 3.94"H |
| Global Trade Identification Number | 00850047622143 |
| Full listing title | 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 |
Ready to buy?
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 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
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