USB sound card repair

I ordered this cheap (around $10-15) 5.1 channel USB sound card from China few years ago. The device does not have markings on the box so hard to day which exact model it it was. It seems that there are several similar looking cards available at and even today. CM6206-LX based USB Sound

Damaged USB type C cables

USB type C connector is becoming more and more common in many devices. It is now a very common charging interface for modern smart phones. Generally USB C is more convient and more robust than micro-USB connector. But in those rare cases when something goes wrong, effect can be more severe. Where microUSB chargers normally

USB endoscope repair

I have had this cheap USB endoscope for few years. Then it suddenly stopped working. So I opened it up to see what is inside and hopefully fix to work again. The problems seems to be loose green wire. A bit of soldering and it works again. Not much electronics. Just wiring from USB connector

Cheap poor HDMI to USB converter

Here is a story of one cheap HDMI digitizing device. I have wanted to connect devices with HDMI output Open Broadcast Studio video mixer/streaming software running on PC. Usually HDMI to USB adapters are expensive boxes (around $100 or more). But the I saw this really cheap (€16,15 / US$ 18.99) Mini Portable HD USB

Uusiteknologia 01/2018 is new Finnish language electronics and technology professionals magazine. In the newest issue have written articles on four topics (text in Finnish with short introduction in English). Here are the topics: USB-C: The USB Type C is the latest USB connector type especially for portable devices. The new USB version offers higher data rates

The Tomu: An Arm Microcontroller That Fits in Your USB Port This looks interesting. There are a fair number of USB stick computers on the market. the Tomu is different because it id so small it fits entirely inside your computer’s USB port.  The board is based around Silicon Labs “Happy Gecko” EFM32HG309 Arm Cortex-M0+ microcontroller. It was inspired by the YubiKey 4 Nano. The project is entirely open source with the hardware under

Is your encrypted USB drive secure? How can you be sure the “secure” USB drive you’re using is really secure and the data you store on it can’t be extracted? That’s exactly the question Google’s security researchers Ellie Bursztein, Jean-Michel Picod, and Rémi Audebert addressed in their talk, “Attacking encrypted USB keys the hard(ware) way,” at the recent Black Hat

​How to use Linux’s built-in USB attack protection | ZDNet USB is insecure. There are USB sticks that will destroy your computer, USB sticks loaded with spyware, and even official enterprise USB sticks infected with malware. Windows and Macs are easy to crack with USB-borne tools. There are devices like the USG USB stick firewall, which can protect you. Linux users can stop attackers armed with USB sticks with USBGuard software.