The long left side of the tablet houses a full - size USB port that you can use to attach a USB Flash drive, external hard drive, or keyboard / mouse. (laptopmag.com)
On the front left side of the tablet you'll find a speaker which provides reasonably loud, if not exactly stellar audio. (mobiputing.com)
The Transformer Pad Infinity's sole speaker is awkwardly positioned on the back left side of the tablet, meaning you will undoubtedly cover it up with your hand when holding it in landscape mode. (laptopmag.com)