The phone is powered by Qualcomm's Snapdragon 617 processor. Then there is 3GB RAM and the 32GB internal storage.
The One A9 comes with 32 GB of internal memory, HTC claims that the phone supports microSD cards up to 2 TB. 2,150mAh non-removable battery and Quick Charge 3.0 are other features.
32GB of built-in storage and also supports microSD card slot for further expansion to 2TB.