Save Your PC.
Ever Noticed That You Have To Leave A PC On in order to charge USB Devices? well PC's Do Suffer Wear & Tear Like Many Other things (Jus Trust Me On That). Instead Why Not Buy A Mains Powered USB Hub with 4 to 7 Ports. Then you can charge when your not using your pc, not have the noise of the fan and not have a decent pc actin like a charger. and it saves electric. it's win win for about 7 pound including P&P (FOR A BRANDED ONE) from AMAZON UK