Whirlwind FP-3 and FP-4 units feature removable bottom and end panel(s) to facilitate custom punching and engraving. (The FP-3 has one interchangeable panel on one end, the FP-4 provides panels on both ends.)

Cable-clearance slots in the doors allow it to close over cables when in use and the FP-4 features a second separate hinged section that can remain open if the pocket is used with large diameter cable.

Both the FP-3 and FP-4 are deep enough to contain multipin connectors including Whirlwind's MASS series.

• Removable bottom and end panel(s) to facilitate custom punching and engraving.
• one interchangeable panel on one end.
• Contain multipin connectors including Whirlwind's MASS series.