The Acer Aspire 3830tg Timelinex cooling fan from us is brand new,100% compatible with your original laptop cpu fan. Each Acer Aspire 3830tg Timelinex fan should be under strict quality control before leaving the factory, and has passed the authentication of CE, UL, EMC, CQC,ROHS, etc. 30 days money back and 6 months replace warranty.