NiceTQ Replacement Home Wall AC Power Adapter Wall Charger for Texas Instruments TI-89 Titanium / TI-Nspire CX Graphing Calculator Replacement High Quality AC Wall Charger Input: 100V -- 240V Output: DC5v, 1000mA Compatible with Texas Instruments TI-89 Titanium / TI-Nspire CX Graphing Calculator Build in Dynamic IC, Charger IC & Power fuse for rapid charging and over charge protection