Look at this external hard disk for the combine study of physics and chemistry subject of 11th class. The e- study materials are prepared by experts in the particular field and can be used for detail study of engineering and medical entrance exam preparation . This external hard drive contains: 359 hours of 693 video parts with 175 GB size. Supplemented with 1079 pages and 49 MB size of e- study material. It covers Physics and Chemistry of XI standard CBSE and competitive exams like AIPMT, AIIMS, IITJEE mains and Advance. Validity: 1 year. Compatible OS: Mac , License: Single Machine with Mac Operating System.