These printers use the T676XL320 cartridge:

Epson WorkForce Pro WP-4010

Epson WorkForce Pro WP-4020

Epson WorkForce Pro WP-4023

Epson WorkForce Pro WP-4033

Epson WorkForce Pro WP-4090

Epson WorkForce Pro WP-4520

Epson WorkForce Pro WP-4530

Epson WorkForce Pro WP-4533

Epson WorkForce Pro WP-4540