Compact Lc To Lc Keystone Coupler Is Ideal For Keystone Patch Panels And Wall Plates - Supports Single Mode (9/125 M) And Multimode (62.5/125 M And 50/125 M) Fiber Core/Cladding - Compatible W/Led And Vcsel Sources; Insertion Loss Below 0.2Db Exceeds Tia 568 B.3 Standards - Quick Toolless Setup; Coupler Attaches Securely With Metal Tabs; Note: Best Paired With Lc/Lc Cables With Upc Polished Ends - Durable Abs Housing; Ceramic Inner Sleeve Enables Precise Alignment; Includes Dust Covers