Specifications:

1) Combo ARC Chip for Epson Stylus NX125/NX127/NX420/Workforce 320/Workforce 323/Workforce 325/NX625/Workforce 520(T1241-T1244 ,T1251-T1254)

2) Offere with Switch and Reset Button

3) Can used without original Cartridge on with the Switch down

4) The white button has the reset ink level function

5)Reset chip at one time