There have been many new HDMI TV dongle based on the latest Rockchip RK3188 lately, and I listed some of them in comments in CloudnetGo CR9’s post. The only issue is that you can’t buy most of them, just pre-order. Now it seems at least one of them, Tronsmart T428 is available now, and costs $99 on Geekbuying. This mini PC comes with 2GB RAM, 8 GB Flash, Wi-Fi and Bluetooth, and for the first time, AFAIK, a mini PC can be used as Miracast display.
Here are Tronsmart T428 specifications:
- SoC – Rockchip RK3188 quad core Cortex-A9 up to 1.8GHz + quad core Mali-400 MP4 @ 533MHz
- System Memory – 2GB DDR3 @ 1333MHz (Hynix)
- Storage – 8GB NAND Flash + micro SD slot (Up to32GB)
- Connectivity:
- Wi-Fi – 802.11 b/g/n/ac (via Broadcom AP6330)
- Bluetooth – BT4.0 (via Broadcom AP6330)
- USB – 1x USB 2.0 host + 1x micro USB for power
- Video Output – 1x HDMI 1.4
- Video Codecs – Mpeg1/2/4, H.264, VC-1, Divx, Xvid, RM8/9/10, VP6…
- Video Formats – MKV, TS, TP, M2TS, RM/RMVB, BD-ISO, AVI, MPG, VOB, DAT, ASF, TRP, FLV etc
- Audio Codecs – LPCM, FLAC, HE-AAC, MP3, OGG, WMA, WMAPRO
- Power Supply – 5V/2A
This Android 4.2.2 HDMI TV stick comes with an HDMI cable, a USB power adapter, a USB 2.0 to Micro USB cable (for power), and a user’s manual. The user interface features soft power off, Volume +/-, and full screen mode (Status bar hidden) buttons.
You may have noticed 802.11ac (1.8 Gbps) Wi-Fi support with Broadcom AP6330 module. This seems really high-end, and I can’t find any reference to AP6330. So I’ve asked GeekBuying for confirmation. [Update: Some RK3188 mini PC will use AP6210, others AP6330 like T428. AP6330 can support 5Ghz WiFi frequency, but AP6210 just supports 2.4Ghz. There’s about $10 US difference between the two modules. GeekBuying tested the connection with a 5GHz router and it works, however they don’t have 802.11ac router yet, so they decided to remove 802.11ac from the listed specs for now].
GeekBuying has said they tested WiFi display with XiaoMi 2 smartphone, as well as XBMC 13.0 beta, and both are working fine. They posted a video showing the device in action, and it appears to be very smooth. However, they only showed “WiFiDisplay” application, but did not demo it.
I’ve been told I would receive the device, so you can expect a detailed review soon.

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.
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