Genuine OEM Pantum PB310H High Yield Black Toner Cartridge. They are designed to work in the Pantum P3100D, P3100DN, P3200D, P3200DN, P3105D, P3105DN, P3205D, P3205DN, P3255DN, P3225DN printer/copier(s). Product Detail Ninestartechonline.com