Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers.For use with Keystone panels or wall platesMonoprice continually strives to improve its product line to bring our customers the best products availableF Type Keystone Jack- Coupler type (female connectors on the front and back)Quality at a Fair Price: Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices.