The SINUMERIK OP 015 black operator panel front can be used for:

• SINUMERIK 840D sl:
  NCU 710.3B PN/NCU 720.3B PN/NCU 730.3B PN
• SINUMERIK PCU 50.5 Windows 7

For a USB 2.0 port at the front, a USB extension is available for installation in control desks.