USB modular instruments for SerDes development and test Everything you need to develop and verify your high-speed digital interfaces is contained in these ultra-portable test and measurement instruments. They will forever change the way you think about developing and verifying Gbps digital and mixed-signal algorithms, and they will allow you to measure signals in ways that were not possible in the past. Each personalized SerDes tester is equivalent to multiple hardware instruments, containing everything that you need to make high-performance measurements like bit error rate testing, signal generation, and signal measurement.