hp professional brochure & flyer paper, two-sided gloss:
Letter-size: 50 sheets C6817A
A4-size: 50 sheets (Europe) C6816A
A4-size: 50 sheets (Asia) C6819A
hp professional brochure & flyer paper, two-sided matte finish:
Letter-size: 50 sheets C6955A
automatic two-sided printing module