KLS12-RJ45-M-4 CONN. MODULAR PLUG COVER RJ45 BLUE T545062 KLS12-RJ45-M-4 is a high-quality modular connector accessory that designed as a Cover for RJ45 connectors in Blue color. Manufactured by KLS ELECTRONIC under the KLS12-RJ45-M series. Compliant with ROHS standards and packaged as BULK.