Wi-Fi SD cards are mostly used with camera in order to wirelessly transfer photos or/and videos to your computer or mobile device without having to take out the card or transfer them via a micro USB cable. I first discovered this type of card with Toshiba FlashAir in 2011, but now EyeFi seems to be the most popular brand, and comes in different sizes with the 8GB Wi-FI SD card selling for $44 on Amazon US. There are cheaper alternatives with some Wi-Fi SD card adapters accepting micro SD card selling for about $15 and up on Aliexpress or Buyincoins, and DX calls it CY EP-027, but sells it for $23. It does not come with storage but since a 8GB class 10 SD card now costs about $8, it’s still nearly 50% cheaper compared to the 8GB EyeFi SD card.
- Max micro SD card capacity – 32GB (SDHC/SDXC)
- Connect up to 3 devices simultaneously
- Supports “with the beat-per-view” feature, which probably mean “Shoot and View” so that you’ll see the picture on a bigger display, as soon as you take it with your camera.
- File formats supported: Photo (JPG, PNG, BMP), Video (MP4, AVI, MOV) and Music (MP3, WAV)
- WiFi/SD settings: WiFi password, AP Mode and Station Mode switch, IP, channels, number or users, SSID.
- Default passwords – Wi-Fi: 99999999; App credentials: admin/admin
The card is said to work with Android and iOS devices, as well as computers.
To use it, you need to insert a micro SD card in the adapter, insert the adapter into your camera, then locate the Wi-Fi hotspot with your device or computer and login with the default password. Now open you browser, and you should be able to download the app. Alternatively, you can also download [email protected] app from Google Play or iTunes.
I could not find the manufacturer, and the app developer “Key Technology” only setup a place holder blog, probably to comply with the app stores’ requirements to have a support page.
Thanks to Onebir for the tip.

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
Re micro sd cards for $15ish you can get a 32GB class 10:
http://www.buyincoins.com/item/49979.html
(Possibly cheaper on Aliexpress, but a lot of the ‘bigger’ cards there don’t have the full stated capacity.)
@onebir, I will never buy cheap SD cards. Just not worth losing your photos because of it. Even store branded ones aren’t worth the risk.
@Sam Butler
Fair enough… & actually I had an Adata card brick within a few weeks…
Out of interest, which brands have you found reliable? (Maybe CNX could do a poll? 🙂
@onebir
I’ve found out many of my cards (ADATA, Kingston, and Kingmax) reported I/O errors when using dd, but finally the culprit was my cheap SD card reader. These tend to last only a few months in my experience. I went through four in 2 years, now I’m using the one in my laptop which hopefully will last longer…
@Jean-Luc Aufranc (CNXSoft)
I don’t remember if I used a card reader with this card. It might have been plugged directly into a tablet…
@onebir
Just to make it clear: The micro SDs in the reader reported I/Os error, and as soon as I switched to the laptop internal card reader they worked, so the reader did not damage my SD card.
No support for HTML? And why is it limited to 3 connections?
Do these cards transmit only are can you send it files as well?
I have a usb sd card thumb drive that I hook up to an old tv to play video files, but it’s a pain to remove it to delete/load new files.
@ben
Based on the app screenshot, it seems you can only download the files.
Is it better than the following one (ez Share/ez [email protected])?
http://www.aliexpress.com/item/new-Free-shipping-ezshare-EZ-share-micro-sd-adapter-wifi-wireless-16G-32G-memory-card-TF/32288664638.html
@xfr
Looks almost the same. The description mentions upload and download though…
Sounds cool (at $15), but does it run Linux?
@anon
just for the record, looks like ez share does not run linux but Nucelus PLUS RTOS:
https://forum.openwrt.org/viewtopic.php?pid=224832#p224832