uni SD Card Reader, High-Speed USB C to Micro SD C

Fast and Reliable SD Card Reader
The uni SD Card Reader is a fantastic and compact solution for transferring data between devices. The dual slots for SD and microSD cards are incredibly convenient, and the USB 3.0 connection offers fast read/write speeds. It works seamlessly with my MacBook Pro, Chromebook, and Android Galaxy phone, making it a versatile tool for photographers and content creators.The design is sleek and portable, and the build quality feels solid. I’ve had no issues with compatibility or transfer speeds. If you need a reliable, high-speed card reader, this one is definitely worth considering. It’s simple, effective, and gets the job done without any fuss.

Very easy to use
Having slots for both SD and MicroSD cards makes it easy to transfer files to my computer. Small, easy to keep handy.

Works well. Nicely compact.
I wanted a quick SD/Micro SD card reader I could use on the macbook, and this seemed small and decent. It works well. I like that it has both USB-C and USB-A connectors in such a tiny package. That makes it pretty useful for a variety of machines I have here. If I had one minor complaint, it would be that the caps over the USB-A and USB-C connectors come off a little too easily. They’ll pop off in a pocket or bag on occasion. Other than that, though, a great little reader.

THERMAL ISSUES ARE A CONCERN
I liked the smaller form factor versus the old Sandisk ImageMate All-In-One workhorse model that is intended for a desktop setup. I had no issues with the Uni USB-C reading Samsung or San Disk memory cards. Uni functioned perfectly via port to port read and write at simultaneously and from card to card data transfers. [NOTE: a few users complained the device did not function in that manner by design. I can assure you it has no issues reading and writing to two SD cards mounted in the unit.]SETUP: 2014.5 Macbook Pro running OSX 10.15.3 with Uni USB-C 3.0 mated to Mac USB port directly (no USB hub).MEDIA:-Samsung SD 500GB card connected directly into the micro SD slot (no adapter)-Sandisk 400GB card connected via card adapter into larger SD slot. (w adapter)ANOMALY: THERMAL ISSUESUpon insertion, Spotlight indexing alone caused the Samsung SD card to get red hot to the touch thus warranting an immediate shutdown and removal of the device.-Spotlight was disabled and the Samsung card was reinserted without thermal issues.-Sandisk SD card inserted. No issues.Data transfer was then started with a few small files at a time without issue. 2.26GB of docx files were then transferred without issue. When moving large amounts of data however, the card got hot. So did the entire USB card reader. UNI device warm to the touch. Card temp nominal temp. No rise detected.The transfer results were successful. This device does work regarding Form, Fit and Function. However, the heat issues are something one should be weary of.Reason being, as a comparison, I ran the same Samsung SD card in the old Sandisk ImageMate All-In-One model and allowed Spotlight to index the entire 500GB card. The card was luke warm while the reader body was cold. Now, as to whether or not the circuit board inside was getting warm or not, I cannot attest to that but, I can attest to the fact the temperate of the SD card itself was luke warm. And that is really what matters. A scorching hot memory card warrants attention. I can copy the entire contents and move it over in one operation without the cards melting down on the old workhorse (Sandisk ImageMate All-In-One) .For smaller data transfers or, perhaps other applications on other computers this UNI USB-C reader may operate okay. I cannot say without testing it myself in a reliability lab for months on end. The OEM making these should have done a DOE and all the Environmental and Reliability Testing to ensure thermal runaway was not an issue. It is an issue that warrants attention.SUMMARY: Great form factor. No fitment issues. (Note: I hope users are aware of the direction the cards go in. It sounds like some are jamming the cards in in the incorrect orientation. I had no fitment issues on the 2021 model. Transfer speeds were quick. Hundreds of GBs of data were moved without corruption.The only anomaly or issue rather of concern is the thermal rise at the SD card level. If they are using the body of the device as a heat sink to wick heat away from the components inside, I get that aspect. It is a very small form factor but, the question is where is the heat originating: The card or the electronics inside? I would not take a chance on a scorching hot memory card being reliable and holding out for any length of time – especially on repeated thermal shocks like what this device subjects cards to.

Resulta verdaderamente útil, me ha sacado de muchos apuros, poder transferir datos de mi cel a una USB redujo considerablemente el uso de computadoras y me ahorra mucho tiempo y dinero.A veces necesitas datos a la mano y no hay una computadora cerca para ello.Lo único que me disgustó un poco fue la falta de ergonomía en el lado de la entrada tipo C.El cuerpo del producto es muy tosco y la entrada tipo C corta, por lo que a fuerzas debo quitarle la funda protectora a mi celular.Fuera de eso un muy buen producto, la velocidad de transferencia de datos es lo que debe de ser.Tiene una estética muy chévere.Como dato curioso, necesitas el adaptador de la micro sd para integrarla al adaptador.Y este queda muy expuesto, bastante tosco a la vista a mi parecer.

Works great, the size is also perfect!

Für den Preis top. Arbeitet hervorragend und schnell am PC und Handy.