Acer UHS-II USB C SD Card Reader with 100W PD Port, 3-in-1 Type-C SD 4.0 Memory Card Reader Adapter for MicroSD SDXC SDHC MMC RS-MMC UHS-II & UHS-I Cards for iPhone 15, Macbook, Tablet, Cameras (Grey)

Great card reader
Seems a well built product. Only used for SD cards, which have given a good transfer rate. Cable long enough to give flexibility when plugged into laptop, but not too long as to clutter desk.

Returned it as defective but re-ordered a replacement
I bought this yesterday. The USB C cable does not hold in either of my Samsung devices (phone an tablet). I have no such problem with any of my charging cables, so it is a defect with the male connector on this ACER device. For the relative price and brand, I expected it to be perfect, so I’ve reorded it today. The risk is that it’s the same batch. But I’ll update or revise this review in a day or so.EDIT: I obtained a replacement. Fits and works perfectly. A solid, well-made piece of kit.

Incompatible with Neocore E2-S tablet.
Not compatible with my new Neocore E2-S tablet. I bought it to download photos from my Olympus camera.

Handles two cards at once
This two-slot metal-cased device is a memory card reader using a chipset by Genesys Logic, Inc. (PID 0x0764 VID 0x05E3). This reader plugs into a USB-C port with a 7″ cable but will work in USB-A with an adapter (not included). It’s compact enough to tuck away in a camera bag or laptop bag (preferably in a pocket or it’ll disappear into the depths of the bag).It sets itself up as two drives (using two drive letters in Windows) which means both the SD card slot and the microSD card slot can be used simultaneously. These drives only appear when a card is inserted, though; if there’s no card, there’s no device letter and not even a “bong” from Windows to indicate that the reader’s plugged in.Note that the microSD card needs to go in label-side up and the SD card label-side-down. Something else to note is that the cards go a fair way in, so removing the microSD card is a fingernails job. The SD card slot supports the write-protect switch of the card and will not write to cards which have the switch set to read-only.Being a USB 3.0 device I was expecting decent performance, and indeed it did perform well, writing to two cards simultaneously at a combined 44.4 megabytes per second and reading at a combined 71.2 megabytes per second. It performs better doing one card at a time though, managing 50.7 megabytes per second write and 83.2 megabytes per second read. I’ve seen smaller devices using the Alcor chipset slow down drastically as they warm up, but that doesn’t appear to be the case here.The final feature to mention is the USB-C PD (Power Delivery) port, so you can charge through the same USB-C port you’ve got the interface plugged into. This PD port is power-only, so you can’t daisy-chain other devices through it; it’s power in, power out (e.g. charge your phone) or nothing.It doesn’t come with a USB-A to USB-C converter, but will happily work with one. Note that depending on how the converter is wired you may find that even if it’s a USB 3.0 converter (with the extra five pins) the adapter only runs in USB 2.0 mode. If it does, simply unplug the USB-C connector, flip it over and plug it back in.

Such a simple tool with big impact. I LOVE how much ease it offers to transfer photos from any type of sd card to my laptop or iPhone, but especially iPhone. When it comes to editing on the go, this is a must-have. Import your files and begin editing them in your photo apps of choice! There are basically no delays and this accessory can fit into the smallest of pockets.Great quality performance and build from a brand from a well-known tech company; you can’t go wrong with this!________________Product review for 📌Seller/Brand: Acer Store • UHS-II USB C SD Card Reader with 100W PD Port, 3-in-1 Type-C SD 4.0 Memory Card Reader Adapter for MicroSD SDXC SDHC MMC RS-MMC UHS-II & UHS-I Cards for iPhone 15, Macbook, Tablet, Cameras (Pink)

I used it for a Samsung galaxy tab active 5 tablet. The other readers we had did not recognize when I would remove or insert on my SD card. This one has the right chip set so that the tablet will recognize the card being removed and inserted without having to unplug the entire reader every time! I think I read another review saying it’s a Genesys Logic chipset.