Amazon says this:
Mutant HD51 Hevc 265 ultra HD 4K 2,160p Linux E2.
PVR compatible software not included.
The first Mutant 4K box with excellent performance and 2 plug and play tuners for SAT (DVB-S/S2) or cable/terrestrial (DVB-C, T, T2). Based on a DMIPS 10500 BCM 7251s processor with 1500 MHz dual thread and 1 GB RAM, HDMI version 2.0; 3x USB with 1x USB 3.0 and 2x USB 2.0 enable many external devices with high demands for plug-ins and OpenATV with 4 GB of flash memory space. An already existing 1 gigabyte, 1000 MBits LAN port provides for ultra fast data transmission. There is also space for a 2.5-inch hard drive (not included). Of course, there are also plug-ins that are tuned to 4K, including YouTube 4K.
Technical details:
Operating system: Linux OS, E2 CPU: BCM 7251s.
DMIPS CPU: 10500 DMIPS processor SoC: 28 nm timer: 1500 Mhz.
Maximum video resolution: 2160p (4K ultra HD).
H.265: yes.
VP9.
4K YouTube: yes.
VP8.
YouTube: yes.
Open GL ES: yes.
Card reader: 1.
Common interface (CI slot): 1.
Changeable tuner: yes.
Tuner: 1x DVB-S/S2 and 1x DVB-C/T2.
Boot loader SPI flat: 8MB.
Nand flash: 4096 MB (4 GB).
DDR memory: 1 GB.
Hard disk: 1 x internal 2.5 inches.
E-Sata: no; USB 2.0:2 (1 x back, 1 x front).
USB 3.0:1 (back).
LAN: 1000 MBit, maximum HDMI version: 2.0.
YUV: no, scart: no, RCA: yes.
S/PDIF: yes, display: VFD dot-matrix.
Power supply: external 12 V.
Consumption (FSD): 13.1 W, 7.1 W, 0.5 W.
Dimensions (width x depth x height): 300 mm x 220 mm x 50 mm.
WEEE regulations.Number: DE 98986982.