OOS. Just asked at Newcastle branch
This is the best and most discreet for OTG adapter: CY 90 Degree Left Angled Micro USB 2.0 OTG Host Adapter with USB Power for Galaxy S3 S4 S5 Note2 Note3 Cell Phone & Tablet https://www.amazon.co.uk/dp/B00M7X6XNG/ref=cm_sw_r_cp_api_i_eWidFb87XGBFN
Still can't believe I paid £15.99 for this on an Amazon lightning deal last July :o
no, you need a lot more power to be able to emulate ps2 games.
Just been in and bagged one, 14 left on the shelves