T230C The 1.40.2303.0 driver seems to work fine.
With both DVB-C and DVB-T2 H.265 HEVC. I've just tested it for five minutes and switched everything through briefly. I've been using the Mygica / Genitech Total Player / TerraTec Home Cinema program and the T230C Stick for years, so a five-minute test is enough. The program starts immediately with the 1.40.2303.0 driver; with the previous 1.32.1748.0, June 28th, 2017, which run very stable, I also always had to pull the stick out of the USB port and plug it in again, after I had disconnected the PC from the power and started up again. With 1.40.2303.0. T230C it starts immediately without plug and play. - Windows 10, 64, AMD A8 -7600 Radeon R7.
The driver download - posted August 22, 2018 see above, by Ukmark62 - is still working. You have to be logged in to download the file. It´s a x64.zip 686 KB.