Does this clamp work with both male and female pipe ends?

V-band clamps work with flanged pipe ends. Both sides of your connection need to be machined with the matching V-band flange profile for a proper seal.

Will I need gasket material or sealant between the flanges?

Depends on your application. Most builders use a thin gasket or high-temp sealant between flanges for exhaust work. For boost piping, test-fit dry first to confirm clamp pressure before deciding on gasket material.

Can I reuse this clamp if I disconnect it?

Yes. V-band clamps are designed for repeated assembly and disassembly. Hand-tighten evenly across the band and it'll seal the same way every time you reconnect.