HD712

The RITA HD712 (aka Ray Wu 27 channel) controller accepts DMX input and drives 27 DC channels.
27 channel Easy DMX LED controller;dmx decoder& driver

The AliExpress listing is

http://www.aliexpress.com/store/product/Easy-DMX-LED-controller-dmx-decoder-driver/701799_378111925.html

and with RJ45 plugs

http://www.aliexpress.com/store/product/27channel-easy-constant-voltage-dmx-decoder-with-RJ45-interface-DC7-24V-input/701799_1558064774.html

• DC input (7V - 24V)
• 27 outputs arranges in groups of 3 In Channel 1 R, G, B + common format
• Dipswitch selectable start address
• Inbuilt test function via "Function" setting on dipswitch
• Maximum current per board of 15A

Easy DMX LED controller
Power input:DC 7V- 24V max 15A
Output: 1A each channel max 15A
Channel: 27channel 9 group
Controller: DMX512 XRL 3P
Work temperatire:-20~50 degrees Celcius
Dimension: 200 x 85 x 25mm
Weight: 0.18Kg

A thread on AusChristmasLighting covers most things about this controller including modifications to allow it to use a 5V power supply, adding RJ45 plugs and increasing the maximum current.
That thread is http://auschristmaslighting.com/forums/index.php/topic,741.0.html