Hyperdeck Studio Mini Record Time?!?!

So, I've been got H.Studio Mini a while ago and after trying twice, it's there in the corner.
I bought a 128Gb Sandisk Extreme Pro card compatible.
Set the codec for H.264 LOW
it received a video of 720p.60
.......
and the TOTAL record time was around 1h30. Is it correct? Last time a used a recorder on a Live event, It managed to pack around 30h high quality in around 280 Gb.... but I got this 'cause I have lots of Blackmagic products.

IS THE TIME ON YOUR RECORDER Similar to mine or do you have a setup/codec where it can record much more than 90 min or so?

Thanks!!!

At least according to the manual, the data rate for 720p60 H.264 Low is 12 Mbps (or 1.5 MB/s). At that rate, an hour of video should take about 5.4 GB of space, allowing for about 23 hours of recording on a 128 GB card.

Recording in 1080p60, I am able to record many hours of H.264 footage on a 128 GB SD card.

Are you sure you were set to record in H.264 and not ProRes (which use way more space)? Did you format the SD card in the HyperDeck Mini?