Tablets technology

Hello, i dont have very experience on tablets and i am doing a survey on them (for industry and specific for the IT part) but i cant find a solution. I am searching tablets which they have the above specifications: at least android 4 and up, quad core, 2 or 4 GRam, and 10’’. In additional, these tablets shouldnt have chassis and/or they shoud have Lan port. Where should i search?