BaseQi Aluminum MicroSD Adapter for Microsoft Surface Book 3 13.5" (Surface Book 3 13.5" (model-350A))

Used in Surface Book 2 and currently holds a 128GB Micro SDHC card. Ideal for its intended use. A full-size SDHC card (or a normal convertor for mirco SDHC) sticks out the side, and I like to have an SD card permanently installed whether at the desk or travelling. This is an ideal, good-looking, solution to the problem. Its slightly overpriced, but I've not marked it down because of this. Why? Because even though it costs a lot it is value-for-money. It is made of metal, looks like an original part of the computer, and allows me greater versatility of storage at a far lower cost then buying a Surface Book with more internal storage.

Genius idea to expand storage - I have this in MS Surface Book 1 for additional storage with SanDisk Ultra microSD. Works perfectly, always available, file transfer is exactly the same as regular SD card. Flush to the base of the Surface Book. Extensible storage at sensible prices as microSD cards increase in capacity and reduce in price per Gb. Used for approx 6mths with no problems. Extracted to replace with a full size SD card every now and again - it does require some finger nail but nothing unusual, certainly provides confidence that it will not fall out. If you have a Surface then get this to expand the storage at a reasonable price - if you are about to buy a Surface don't fork out for larger internal drive.

Fits perfectly in my Surface Book, and totally flush with the body. Fast transfer speeds too.. I've seen 90MB/sec. I've used them for video editing from, and it works great. Knocked off a star, because I feel they are expensive and should be cheaper.

If you are looking for a cheap and seamless storage expansion for a lower tier Surface Book this is a great solution. Micro SD cards are significantly cheaper when compared to the more expensive versions of the Surface Book, which is a treat for your wallet but not so much for the usability of the device. Everything in the world has its downsides and this is no exception, as the speed and reliability of even the best SD card is inferior than that of any SSD, let alone one of the best ones which Microsoft had installed on their premium devices. If you haven't yet bought a Surface Book (or any similar laptops in general) and you see this as a way to save some money, then it is the best that you buy at least the 256GB option and then add this as an extra drive for any data that does not require a fast drive such as a local copy of your OneDrive files, and even so you still need the fastest Micro SD card you can get. For this I would highly recommend a Samsung PRO Plus 128GB Micro SD card or SanDisk Extreme Pro 128GB Micro SD card. But all of these performance is only available in 128GB options, and if you want 256GB the only good option is the Samsung EVO Plus 256GB Micro SD card which is a lot faster than the SanDisk counterpart. If you want to go above and beyond with storage and not care all that much about performance, the biggest but also slowest elephant in the room will be the SanDisk Ultra 400GB Micro SD card, the only one of its kind on the market yet, but a faster version of it will come soon. There is an Integral 512GB Micro SD card available now which is the largest in the world so far, but at this point you’re good to go with a higher capacity laptop out-of-the-box.

Excellent for SB2. Fit and forget. Mine has a 200GB micro SD,and works perfectly. And yes, One Drive folder is stored on this. If you bite your nails, it might be difficult to remove, but a guitar pick will do the job. Qi have made a really nice piece of kit here. Too expensive? So is a Surface book. But if you want one, just pay the money, and enjoy a bit of quality!

Fits seamlessly into the surface books memory card slot. In fact I often forget the extra disk space is from that add-on as it is well hidden. Brilliant idea, valuable and effective. The unit can be removed with little problem with a small pin, but is safe from accidental removal.

While on the face of this it appears to be a well designed and attractive solution, in practive it does not hold the Micro SD card securely and even small movements in the laptop will result in the card disconnecting and reconnecting, which makes this a totally useless product.

I bought this for a family member for their Surface Book (version 1) we did full speed testing on 3 types of micro sd cards from SanDisk and speeds read and write wise was fantastic. Also the adapter fits flush the colour wise dead on the finish is very close but only in close inspection I would recommend this to anyone with the surface book looking to expand there storage. The adapter may be tricky to remove if you have no nails but we found a plastic guitar pick works well to remove it.

Got struck and doesn't work as expected cannot remove so cannot return!!

Encaja a la perfección en mi surface book 2 de 15". Queda totalmente nivelada con el lateral del equipo. Se extrae con relativa facilidad usado la uña o un objeto puntiagudo. No esta pensada para estar poniendo y sacando continuamente. Ideal para aumentar la capacidad de disco del surface, como disco secundario. La uso para eso con una SD de 128 GB y da velocidades de lectura de 90 MB/s.

Excelente Queda perfectamente en mi Book 2 de 15pulgadas Creo que es un accesorio algo caro pero debo de decir que cumple perfectamente y queda completamente escondida así así cuando la guardo la Lap en la mochila no hay riesgo de que se caiga o dañe.

Sin duda es cumple con la función de ser un adaptador diseñado específicamente para una Surface Book, sin embargo comparto la opinión de otros compradores, es un precio elevado.

Rien à redire sur le fonctionnement de l'adaptateur qui fait son job avec une carte SanDisk 200Go. Il convient cependant de se souvenir que le slot se situe côté clavier... ce qui signifie qu'en décrochant l'écran on déconnecte en même temps la carte SD qui n'est pas disponible en mode tablette, mais également lorsque la batterie descend au dessous de 5%. Ce n'est bien sûr pas la faute de BaseQi dont l'adaptateur remplit le cahier des charges mais plutôt celle de Microsoft qui a loupé un truc dans le design du Surface Book... A prendre en compte néanmoins.