These docks were and still are ridiculously overpriced from Microsoft. They're still on sale for $279.99 via the MS Store. At sub $50, its much more reasonable. Cheapest its previously been was $90 @HN last year
This is for the Surface 3 only (Intel Atom - 10.8"). Not compatible with Pro models.
$22USD + $15.75USD shipped. Comes to $47.24 for me via 28 degrees Mastercard.
Close to the lowest price ever as per CamelCamel ($19.99 USD)
Edit
As of 02/08/17 there has been a further price drop. If you choose Score Almighty as the seller it's only $17.95USD + $15.75USD for shipping = $33.70 USD which is $42.36 on today's rates.
You need to change the supplier to Blue Plus One to get it to ship to Australia. This was default when I purchased it this evening, but it looks like they've just changed it to someone else. You can still add it to cart and check out if you change the supplier as above.
In terms of ports, it adds:
* Power supply input
* 2 USB 3.0 ports
* 2 USB 2.0 ports
* Gigabit Ethernet port
* 3.5mm audio input/output connection
* Mini DisplayPort video output
* Security lock slot
* Pen holder
Came across this after trying to find a faster charger for the dismal 5.5hr charging time of the surface 3 via the default microUSB charger. This is prolonged further if you're actually using it. The default charger charges at 13 watts, compared to the dock which provides 48 watts. Obviously there is a current threshold on the battery but reviews from reddit show a significantly faster charging time (250% faster) as it charges via the USB type A port instead of the microUSB. This would give it a ~2hr charge time akin to the Pro line with its magnetic charger and helps alleviate one of the biggest weaknesses of the S3.
Aside from being a charging dock, I was planned to use it as a defacto HTPC with a wireless keyboard like the Logitech K400R, which can be had for <$15. The LAN and USB ports make it perfect for streaming or plugging in hard drives and you can set sync folders to get it off the slow and limited eMMC storage. Planning to also run Kodi for the media experience.
Despite the Surface 4 pro sales recently, I'm still coming back to the Surface 3 for its portability. For undemanding scenarios such as basic browsing, Youtube, OneNote, its been perfect for my needs. Sad that I'm getting better battery life (7-9 hours regularly) vs the S4Pro (4-6 hrs) under the same conditions.
Having a desktop, I can't justify spending ~$1500 for the new Surface Pro 2017 as my second device in order to get decent battery life.
Not going to be a high volume seller given the niche appeal of the Surface 3, but I hope it helps somebody :)
Can it be used with Surface Pro 4? Anyone knows?