Testo 310 USB A to Micro-B Cable - 0449 0134 The Testo 310 USB A to Micro B cable (0449 0134) is actually a genuine Testo accessory made to get the job done , with data transfer and charging of your compatible Testo instruments coming out hassle free. Its a must have for engineers and technicians - this top notch Micro USB cable gives you a fast and stable connection between your Testo device and a PC laptop or even a USB power source. Whether you're downloading that measurement data , updating firmware on your device or just need to charge up, this cable really does deliver secure connectivity and dependable performance. This is why it makes a great spare or replacement , especially for those who rely on it for their day job. Key Features & Benefits Genuine Testo Gear - We made this one specifically for