Best UGREEN SD and microSD Card Readers: UHS-II, Dual-Slot and Four-Format Picks for Photo and Drone Workflows

For a photographer with a recent camera, the UHS-II SD 4.0 reader is the strongest pick here; for casual use, a simple USB-C microSD reader is enough. Ten UGREEN listings are in this set, spanning USB-A and USB-C plugs, one or two slots, and one with CF support. Titles for the SD 4.0 models state UHS-II and one gives a 312 MB/s ceiling. The rest are UHS-I-class tools that suit everyday copying. Your cards decide how much of any reader you can actually use.

Picks at a glance

What the speed labels on cards and readers mean

SD cards carry bus-speed labels, and the two that matter here are UHS-I and UHS-II. UHS-I tops out near 104 MB/s on the bus, while UHS-II raises that ceiling to 312 MB/s by adding a second row of pins. A UHS-II reader needs a UHS-II card to deliver those numbers, and the reverse mismatch simply falls back to UHS-I. Those figures are standard values, not promises for any single product.

A second layer is the connection to the computer. Readers using USB 3.0 operate at 5 Gbps, which is far more than a single SD card can fill, so the port rarely limits UHS-I or UHS-II. USB 2.0 ports are the exception, and they cap a fast card at a small fraction of its potential.

The third thing shifting this category is the move to USB-C on laptops, tablets and phones. A Type-A reader still works through an adapter, but a native USB-C plug avoids it. The final trend is multi-format: a few readers still bother with CF and Memory Stick for older cameras, which is why those rows exist. General knowledge, hedged.

How these ten were chosen

Every UGREEN SD, microSD and multi-format reader in the set is covered, ranked by what the title states. The basis is published specifications, manufacturer documentation and buyer reviews. Nobody on the team used or measured these units. Where two listings read like twins, the text says so and explains the little that separates them.

The ten card readers

UGREEN USB C SD 4.0 Card Reader UHS-II (SD and microSD)

The title states UHS-II and UHS-I support for SD and microSD, with phones, MacBooks, tablets and Android devices listed. SD 4.0 is the standard that adds the UHS-II pin row, so this is the reader that can use a fast UHS-II card at its full capability, provided the card is also UHS-II and the USB-C port supports the speed.

A good fit for a photographer shooting bursts on a recent mirrorless body. The listing does not give a numeric ceiling, so that detail belongs on the product page.

In workflow terms, this is the reader to keep in the camera bag if you shoot raw bursts or long clips and want the card empty before the next session. Pair it with a USB-C port that runs at full speed, since a slower port quietly throws away the benefit of the UHS-II pins.

• Pros: UHS-II capable; handles SD and microSD; USB-C plug.
• Cons: No numeric ceiling in the title; cost tier above UHS-I rows.

Ask first whether your cards say UHS-II, shown by the two-row pin layout on the back.

UGREEN USB C SD 4.0 Card Reader, 312 MB/s

The second SD 4.0 listing states 312 MB/s for SD and lists SDXC, SDHC, microSD, MMC, RS-MMC, microSDXC, microSDHC, UHS-II and UHS-I. It is close enough to the first that treating them as near-twins is safe. The wording differs, with this one carrying the numeric ceiling and a longer format list.

If you collect old MMC-type cards, the extra format wording is useful. For anyone else the choice between the two is a coin flip, settled by which page shows the clearer photos and the newer buyer reviews.

Do not read 312 MB/s as a typical copy rate. It is the top of the UHS-II bus, and real cards land below it. The sensible way to use the number is as a sign that the reader will not be the bottleneck for a fast card, which is the point of buying an SD 4.0 model at all.

• Pros: States 312 MB/s; long format list; USB-C.
• Cons: Near-duplicate of the other SD 4.0 row; 312 MB/s is a bus ceiling, not a typical rate.

Ask which of the two pages shows the connector and slot layout more clearly.

UGREEN USB C SD Card Reader 4-in-1 (SD, microSD, MS, CF)

The title lists SD, microSD, Memory Stick and Compact Flash, and mentions a trail camera, iPhone 18, MacBook and iPad. That makes it the multi-format option for older DSLRs and trail cameras that still write to CF. The title names Compact Flash, not CFexpress, which is a different, newer format.

A realistic use: a wildlife hobbyist with a trail camera on SD, a retired DSLR on CF and a phone on microSD. One reader replaces three. UHS speed is not stated, so do not assume UHS-II behaviour.

Because trail cameras often run for weeks between visits, the practical gain is speed of turnaround in the field: pop the card out, read it on a laptop at the truck and move on. Memory Stick support will matter to very few readers now, but it costs nothing when the slot is already there.

• Pros: Four formats in one; trail camera use; USB-C.
• Cons: No UHS-II claim; CF only, not CFexpress; bulkier.

Check that your CF cards are Compact Flash Type I, since that is what the title names.

UGREEN SD Card Reader USB 3.0 Card Hub, 4 cards at once

An older-style hub with 5Gbps, reading four cards simultaneously across CF, CFI, TF, SDXC, SDHC, SD, MMC, microSD, Memory Stick and UHS-I. USB 3.0 in the title normally means a Type-A plug, though the page should confirm the connector. It suits a desktop, a studio laptop with a Type-A port, or a dock with spare ports.

Reading four cards at once sounds attractive, but they share one USB link, so expect the total speed to be divided. The value is convenience, such as ingesting a wedding shoot from several cameras at the same sitting.

Because it is billed for UHS-I, this hub will not exploit a UHS-II card. For event photographers who offload several UHS-I cards at the end of a day, though, one hub beats juggling plugs. Expect the reader to be larger and less pocketable than the 2-in-1 USB-C designs.

• Pros: Many formats; four cards at once; USB 3.0 5Gbps.
• Cons: UHS-I class only; Type-A connector is likely; larger body.

Ask whether you really have four active card types, because otherwise the extra slots go unused.

UGREEN USB C SD Card Reader with 4-Card Storage Case

Distinct for the holder: a case that stores four SD or microSD cards alongside the reader, intended for travel and field work. Slots handle SD and microSD, and the title lists iPhone 17 and 18, Samsung and others. It is a USB-C reader first and a card organiser second.

The bundled case solves a small but real problem, which is losing a tiny card between shoots. Nothing in the title gives a speed class, so it should be read as an everyday UHS-I-type tool.

The case matters more than it seems. Loose microSD cards are easy to drop and easy to confuse, and a labelled holder lets you keep used and unused cards apart. If you already own a card wallet, this row loses much of its edge and a plain 2-in-1 reader is cheaper.

• Pros: Cards stay organised; USB-C; SD and microSD slots.
• Cons: No speed class stated; case adds bulk; budget-tier feel.

Before buying, check how the case attaches, which the title does not describe.

UGREEN SD Card Reader USB 3.0, Dual Slot

A classic dual-slot reader for SD and microSD, listed for Mac, Windows, Linux and Chrome, reading two cards simultaneously. It suits a laptop with a Type-A port. Reading from an SD card and writing to a microSD card is the obvious trick.

It is a near-duplicate of the portable dual-slot listing below. Both claim USB 3.0, SD, microSD, TF and SDXC, so the real difference is the page presentation, not the function.

A typical afternoon: shoot on an SD camera, record a clip on a microSD action cam, then plug both in together and copy each to its own folder. Dual-slot readers speed that routine up because you do not swap cards halfway through, which is the main reason they remain popular with tinkerers.

• Pros: Two slots; works across several operating systems; low cost.
• Cons: UHS class not stated; Type-A probable; twin of another row.

Ask whether you actually need two simultaneous slots or only one.

UGREEN SD Card Reader Portable USB 3.0, Dual Slot

This near-twin replaces Windows-and-Mac wording with PC, laptop and Chrome in the device list and adds the word Portable. The format list reads SD, microSD, TF, SDXC and SDHC. If both pages looked identical to you, that is correct.

What differs is likely the body size and cable styling, details that are not in the title. Choose by the photos and the most recent buyer reviews, and do not expect a different transfer speed.

If you cannot decide between the two dual-slot rows, pick the one that arrives with a better return policy and clearer photos. The risk here is low, because the job is the same, and the main way to be disappointed is a plug that does not fit your laptop.

• Pros: Compact and portable wording; two slots; broad OS list.
• Cons: Near-duplicate; no speed class; Type-A probable.

Compare the two dual-slot pages side by side before paying.

UGREEN USB C SD Card Reader, USB 3.0 Micro SD 2-in-1

The title says USB-C, USB 3.0, microSD, SDHC and SDXC, with PC, MacBook, iPad and recent iPhone models listed. It handles both SD and microSD in one small body. That makes it the sensible all-rounder for someone moving photos from a phone-adjacent workflow to a computer.

Speed class is not stated, so assume UHS-I behaviour. It resembles the next row so closely that the pair behave as twins.

It also fits a phone-first routine: photos shot on a phone, drone clips on a microSD, family snaps on an SD card from a compact camera. A single USB-C plug handles all three, and the reader stays small enough to leave in a laptop sleeve.

• Pros: USB-C; both card sizes; wide device list.
• Cons: No UHS-II claim; near-duplicate; no storage case.

Ask which device you plug it into most often, since that decides USB-C or Type-A.

UGREEN USB C SD Card Reader, 2-in-1 Micro SD

Its title lists TF, SD, microSD, SDXC and SDHC with iPhone 18 and 17, Samsung Galaxy, MacBook and iPad. Functionally this is the twin of the USB 3.0 2-in-1 above. The difference sits in wording, not in anything a card would notice.

Pick this or the previous row by whichever page shows the better photos of the body and plug. Both belong in the budget tier and neither claims UHS-II.

Because the two USB-C 2-in-1 rows are twins, the deciding detail is often cosmetic: body width, cable stub or plug angle. Look at product images for how wide the body is next to a neighbouring USB port, since a wide body can block adjacent sockets on a slim laptop.

• Pros: Simple 2-in-1; USB-C; Samsung and Apple devices named.
• Cons: Twin of another row; no speed claim.

Check the plug orientation and body width if neighbouring ports are tight.

UGREEN USB C Micro SD Card Reader, Zinc Alloy

A single-purpose microSD reader with a USB-C plug and a zinc alloy body, listed for Samsung, Mac, iPad Pro and iPhone. It reads TF and microSD cards only; there is no full-size SD slot. For drone and action camera cards, which are almost always microSD, that is enough.

Zinc alloy suggests a sturdier body for a camera bag. No speed class is stated, so read it as a basic copy tool.

A small metal body copes with being tossed in a drone case, and a single slot means fewer places for dust. If your GoPro, drone and dashcam all use microSD, this is a tidy field tool, and a full-size SD adapter can cover the occasional exception.

• Pros: Compact; sturdy-sounding body; ideal for drone and action cards.
• Cons: No SD slot; no speed class stated.

Ask whether you ever need to read a full-size SD card, because this will not.

How to choose an SD or microSD reader

Start with your cards

Look at the back of the card. A single row of contacts means UHS-I or older, while a second row means UHS-II. A reader cannot add speed that the card lacks, so a budget card in a premium reader still copies at budget speed. Check the card’s own label or packaging for its class, and keep one fast card for the work that needs it.

Connector and ports

Match the plug to the computer. Type-A rows suit desktops and older laptops, and USB-C rows suit current laptops, tablets and phones. Confirm the plug in the listing photos. Phones and tablets may also limit which card sizes and file systems they will mount, so check your device’s documentation before relying on one for a shoot.

Slots and formats

Dual-slot models help when you copy between card types. The four-format and four-card rows help only if you really own those older cards. A single-slot microSD reader is the smallest and simplest tool, and it is the right answer when every card you own is microSD. Count the card types in your bag before paying for slots you will not fill.

Worked example: how long does a card take?

Assumptions: a full card holds 100 GB of video, 1 GB equals 1,000 MB, and sustained speeds are the numbers shown, which are assumptions for illustration rather than claims about any product.

Two shoots a week of that size add up to roughly 25 extra minutes of waiting with a UHS-I setup compared with UHS-II, which is the argument for paying more.

Spec concepts

Which reader for which user

Common mistakes and fixes

Try another port and card before blaming a reader.

Verdict by use case

Fast cards: either SD 4.0 UHS-II row. Older cameras: the USB-C 4-in-1 with CF. Drone and action cams: the zinc alloy microSD reader. Desktop with many card types: the 4-card USB 3.0 hub. Travel: the reader with the case. Everything else comes down to plug type and the photos on the page.

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Frequently asked questions

Do I need a UHS-II card reader?

Only if your cards are UHS-II and you move large files often. A UHS-II card in a UHS-I reader still works but falls back to UHS-I speed, and a UHS-I card gains nothing from a UHS-II reader. If your shoots are a few gigabytes, a UHS-I reader is plenty. For multi-gigabyte raw bursts or long 4K video, UHS-II saves real minutes per card.

What is the difference between USB-A and USB-C card readers?

The connector. The reader electronics behind it may be the same, so a USB-C model is simply easier to plug into current laptops, tablets and phones. Several listings here say USB 3.0 in the title, which normally means a Type-A plug, so confirm the connector on the page. An adapter can bridge the gap, though it adds one more thing to carry.

Can these readers read GoPro or drone microSD cards?

Yes, if the listing names microSD or TF, which most of them do. Pick a reader with a microSD slot or an SD slot plus an adapter, then plug it into the computer and copy the files. Titles do not list GoPro or drone support, so treat that as general card handling. Do not expect speeds above what the card itself can deliver.

Does a dual-slot reader read two cards at the same speed?

Not necessarily. Two cards connected to one USB port share that port’s bandwidth, and the reader’s chip may limit each slot. For single-card copying you will usually see the same speed as a one-slot reader of the same class. The dual-slot value is convenience, such as copying from an SD card to a microSD card in one go, not extra throughput.

Why is my card reader slower than the number in the title?

The title shows a ceiling. Real transfer speed is capped by the slowest part of the chain: the card, the reader, the cable and the USB port on the computer. A USB 2.0 port, a slow card or a card with many small files can each pull speed far below the headline. Try a different port and a known fast card first.

Is it safe to unplug the reader straight after copying?

Not without ejecting. Operating systems cache writes, so pulling the reader during or just after a copy can corrupt files or the card. Use the eject option, wait for the confirmation, then unplug. Copy files off the card before formatting it in the camera, and keep a second copy of anything important.