Guerrilla charger for Texas Instruments TI Nspire CX & CX CAS, TI 84 Plus C Silver Edition Calculator (UL Approved) Works with TI-Nspire CX, TI-Nspire CX CAS, TI-84 Color Edition, TI-84 C Silver Edition calculators. Charge Your Calculator Rapidly with Guerrilla's high quality products. Highest quality Cable on the market. This Adapter is UL approved, as safety is our greatest concern. This USB Cable + Adapter set get your calculator charged up with super speed!