The Microtest TWP 2947-4000-01 All-In-One Residential Network Tester is a reliable and efficient tool for testing and troubleshooting network connectivity issues in residential settings. Made by the trusted brand Microtest, this tester does not require any additional accessories or modules to perform its key functions. With a compact design and no storage device size, this tester is easy to use and transport. This product, though missing some accessories like a remote and mounting brackets, still offers quality testing capabilities for network professionals in the USA and beyond.