Review on 🔌 TECHTOO 4 Port Professional FTDI CHIP USB to Serial RS232 DB9 Adapter Converter: High-Quality Serial Cable with Thumbscrews for Error-Free Connections by Damon Murray

doesn't work for me. I bought one of these to use in an RPi based test unit and haven't had any issues so far. I didn't need a driver disk at all - it worked out of the box on Debian Linux (with gasps and stretches). lsusb outputs the following: Bus 003 Device 012: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICBus 003 Device 011: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICBus 003 device 010: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICBus 003 device 009: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICBus 003 device 008 : ID 1a40 : 0101 Terminus Technology Inc. Here is the detailed output (lsusb -v -d 0403:6001): Bus 003 Device 012: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICDevice Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 ( defined on уровне интерфейса) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0403 Future Technology Devices International, Ltd idProduct 0x6001 FT232 USB-Serial (UART) IC bcdDevice 6.00 iManufacturer 1 FTDI iProduct 2 FT232R USB UART iSerial 3 A H05KCY0 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 90mA Schnittstellendeskriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Herstellerspezifische Klasse bInterfaceSubClass 255 Herstellerspezifische Unterklasse bInterfaceProtocol 255 Herstellerspezifisches Protokoll iInterface 2 FT232R USB 0x81 EP 1 IN bmAttri butes 2 Transmission type Bulk sync Type None Usage type data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint descriptor: bLength 7 wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device status: 0x0000 (bus powered) If the device is connected, in /var/log / the following output appears: kernel: [1328570.600195] usb 3-2: new USB high-speed device number 8 using xhci_hcdkernel: [1328570.740504] usb 3-2: new USB device found, idVendor=1a40, idProduct=0101kernel: [ 1328570.740513 ] USB 3-2: USB device newlines: Mfr=0, Product=1 , SerialNumber=0Kernel: [1328570.740518] USB 3-2: Product: USB 2.0 Hub [MTT]Kernel: [1328570.741191] Hub 3-2: 1.0 : USB Hub found Kernel: [1328570.741226] Hub 3-2:1.0: 4 Ports found Kernel: [1328571.048076] USB 3-2.1: new USB full speed device number 9 with xhci_hcdkernel: [132857 1.154958] USB 3-2.1: new USB device found , idVendor=04 03, idProduct=6001kernel: [ 1328571.154967] usb 3-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3kernel: [1328571.154972] usb 3-2.1: Product: FT232R USB UARTkernel: [1328571.154976] usb 3 -2.1: Vendor: FTDIkernel: [1328571.154979] usb 3-2.1: Serial number: AH05KEIJkernel: [1328571.158204] ftdi_sio [1328571.158292] usb 3-2.1: FT232kernel detected: usb3 FT3 converter FT2 Serial Device is now connected to tty usb 3-2.2: New full speed USB Device number 10 with xhci_1.336kernel56: [1.436kernel56: [1328571.256087] ] usb 3-2.2: New USB device found, idVendor=0403 , idProduct=6001kernel: [1328571.362684] usb 3-2.2 : New USB G Device strings: Mfr=1, Product=2, SerialNumber=3Kernel: [1328571.362688] USB 3-2.2: Product: FT232R USB UARTkernel: [1328571.362692] USB 3 -2.2: Manufacturer: FTDIkernel: [1328571.362696] USB 3- 2.2: Serial number: A5062 OYNkernel: [1328571.366032] ftdi_sio 3 -2.2:1.0: FTDI USB Serial Devicekernel Converter detected: [1328571.366124] USB 3-2.2: FT232RLkernel detected: [1328571.366558] USB 3-2.2: FTDI USB Serial Device Kernel Converter now connected to t8t0175:8t0175 ] USB 3-2.3: new full speed USB device number 11 with xhci_hcdkernel: [1328571.594043] usb 3-2.3: new USB device found, idVendor=0403, idProduct=6001kernel: [1328571.594046] usb 3-2.3: USB device Line breaks: Mfr=1, product =2, serial number =3kernel: [1328571.594047] usb 3-2.3: Product: FT232R USB UARTkernel: [1328571.594048] usb 3-2.3: Производитель: FTDIkernel: [1328571.594048] SerialNumber:3 usb 3-2.3 AH05KDAKDAKANkernel : [1328571.596873] ftdi_sio 3 -2.3:1.0 : FTDI USB Serial Devicekernel Converter detected: [1 328571.596890] USB 3-2.3: FT232RLkernel detected: [1328571.597085] USB 3-2.3: FTDI USB Serial Device Converter now connected to tty162kernel: tty162kernel] USB 3-2.4: use new full speed 12 USB device number xhci_hcdkernel: [13285 29.808 usb 3-2.4: New USB device detected, idVendor=0403, idProduct=6001kernel: [1328571.803249] usb 3-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber= 3kernel: [ 1328571.803254] usb 3 - 2.4: Продукт: FT232R USB UARTkernel: [1328571.803258] usb 3-2.4: Производитель: FTDIkernel: [1328571.803261] usb 3-2.4: Серийный номер: AH05KCY0kernel: [1328571.806660] ftdi_sio [1328571.806745] usb 3 -2.4: FT232RL-Core erkannt: [1328571.807221] USB 3-2.4: FTDI USB Serial Converter is now connected to ttyUSB3