This is a set of 30 pieces. Thank you. [Model Number] JASSP58IWY Adapter Color: Off-white Shutter Color: Transparent Printing: LAN/CAT5E Specification: Spring-loaded shutter ● This is a kit of modular jacks and adapters. ● Improved workability with a short depth. ● Can be installed on standard JIS plates for walls. ● Equipped with a spring-loaded slide shutter for dust protection. ● Type: CAT5e ● Printing: LAN/CAT5E ● Color: Off-white ● Weight (g): 13.8 ● Compatible with Category 3, 5, and 5e twisted pair cables ● Conductor outer diameter: φ0.5mm (AWG24) to φ0.65mm (AWG22) solid wire ● Insulation outer diameter: φ0.965mm to φ1.2mm ● Outer sheath diameter: UTP with φ5.8mm or less is set ● Operating temperature range: -10 to 60°C ● Size: W44.0 x D32.2 x H22.9mm