TECHTOO 4 Port Professional FTDI CHIP USB to Serial RS232 DB9 Adapter Converter Serial Cable 9-Pin Male to Male with Thumbscrews
Key features
- •HOW IT WORKS: TECHTOO USB to Quad Port RS232 DB9 Serial Adapter is Designed for Connecting to Serial Devices Such As DB9 Equipped Serial Modems, ISDN Terminal Adapters, Digital Cameras, Label Writers, Palm PCs, Barcode Scanners, PDAs etc Through USB port with 1Mbps Data Transfer Rate
- •CONNECTORS: With Standard USB Type A Male to Standard 9-pin DB9 RS-232 Serial MALE Connector with Hexnuts
- •CONDUCTOR & SHIELDING: Tinned Copper Conductor and Triple Shielding Ensure the Best Data Transfer Rate. Powered by USB Port, No External Power Adapter Required. Simple Installation, Plug & Play after One Time Driver Installation ( Product come with a Driver CD )
- •CHIPSET & SUPPORTED OS: FTDI FTDI232RL Chipset for Widest Possible Stablity and Compatibility with Windows (10/8.1/8/7XP), Mac, Linux, etc. Support Almost All Serial COM Port
- •LIFETIME WARRANTY: USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable is Backed with Lifetime Warranty and Customer Service Support
TECHTOO 4 Port Professional FTDI CHIP USB to Serial RS232 DB9 Adapter Converter Serial Cable 9-Pin Male to Male with Thumbscrews
List Price: $66.00$59.40DEALYou Save: $6.60 (10%)
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Customer Reviews
Reviews sourced from verified Amazon purchasers3.9
out of 5
Based on 10 reviews
5★
60%
4★
10%
3★
20%
2★
0%
1★
10%
Shipped on time and was as described. Appears to ...
PolarUser✓ Verified Purchase•March 31, 2018
Shipped on time and was as described. Appears to have a real FTDI chipset since it works with my Computrainers and has let me hook them up to a newer laptop for Zwift.
Here's detailed (Linux) driver/device info
Jacob Quant✓ Verified Purchase•January 31, 2018
When buying "generic" computer hardware like this I often wish someone would post some technical details so that I can make a better guess regarding whether or not it's going to work for me. I bought one of these for use on a RPi-based test fixture, and so far I have not run into problems. I did not need the driver disc at all -- just worked out of the box on Debian Linux (wheezy & stretch).
`lsusb` outputs the following:
Bus 003 Device 012: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 011: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 010: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 009: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 008: ID 1a40:0101 Terminus Technology Inc. Hub
That is, it appears as a hub with with 4 FT232 converts connected. Here's the detailed output (lsusb -v -d 0403:6001):
Bus 003 Device 012: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
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 AH05KCY0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 90mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 FT232R USB UART
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)
When the device is connected, the following output appeared in /var/log/messages:
kernel: [1328570.600195] usb 3-2: new high-speed USB device number 8 using xhci_hcd
kernel: [1328570.740504] usb 3-2: New USB device found, idVendor=1a40, idProduct=0101
kernel: [1328570.740513] usb 3-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
kernel: [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 detected
kernel: [1328571.048076] usb 3-2.1: new full-speed USB device number 9 using xhci_hcd
kernel: [1328571.154958] usb 3-2.1: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.154967] usb 3-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.154972] usb 3-2.1: Product: FT232R USB UART
kernel: [1328571.154976] usb 3-2.1: Manufacturer: FTDI
kernel: [1328571.154979] usb 3-2.1: SerialNumber: AH05KEIJ
kernel: [1328571.158204] ftdi_sio 3-2.1:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.158292] usb 3-2.1: Detected FT232RL
kernel: [1328571.158742] usb 3-2.1: FTDI USB Serial Device converter now attached to ttyUSB0
kernel: [1328571.256087] usb 3-2.2: new full-speed USB device number 10 using xhci_hcd
kernel: [1328571.362674] usb 3-2.2: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.362684] usb 3-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.362688] usb 3-2.2: Product: FT232R USB UART
kernel: [1328571.362692] usb 3-2.2: Manufacturer: FTDI
kernel: [1328571.362696] usb 3-2.2: SerialNumber: A5062OYN
kernel: [1328571.366032] ftdi_sio 3-2.2:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.366124] usb 3-2.2: Detected FT232RL
kernel: [1328571.366558] usb 3-2.2: FTDI USB Serial Device converter now attached to ttyUSB1
kernel: [1328571.468091] usb 3-2.3: new full-speed USB device number 11 using xhci_hcd
kernel: [1328571.594043] usb 3-2.3: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.594046] usb 3-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.594047] usb 3-2.3: Product: FT232R USB UART
kernel: [1328571.594048] usb 3-2.3: Manufacturer: FTDI
kernel: [1328571.594048] usb 3-2.3: SerialNumber: AH05KDAK
kernel: [1328571.596873] ftdi_sio 3-2.3:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.596890] usb 3-2.3: Detected FT232RL
kernel: [1328571.597085] usb 3-2.3: FTDI USB Serial Device converter now attached to ttyUSB2
kernel: [1328571.696086] usb 3-2.4: new full-speed USB device number 12 using xhci_hcd
kernel: [1328571.803239] usb 3-2.4: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.803249] usb 3-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.803254] usb 3-2.4: Product: FT232R USB UART
kernel: [1328571.803258] usb 3-2.4: Manufacturer: FTDI
kernel: [1328571.803261] usb 3-2.4: SerialNumber: AH05KCY0
kernel: [1328571.806660] ftdi_sio 3-2.4:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.806745] usb 3-2.4: Detected FT232RL
kernel: [1328571.807221] usb 3-2.4: FTDI USB Serial Device converter now attached to ttyUSB3
`lsusb` outputs the following:
Bus 003 Device 012: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 011: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 010: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 009: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 008: ID 1a40:0101 Terminus Technology Inc. Hub
That is, it appears as a hub with with 4 FT232 converts connected. Here's the detailed output (lsusb -v -d 0403:6001):
Bus 003 Device 012: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
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 AH05KCY0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 90mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 FT232R USB UART
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)
When the device is connected, the following output appeared in /var/log/messages:
kernel: [1328570.600195] usb 3-2: new high-speed USB device number 8 using xhci_hcd
kernel: [1328570.740504] usb 3-2: New USB device found, idVendor=1a40, idProduct=0101
kernel: [1328570.740513] usb 3-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
kernel: [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 detected
kernel: [1328571.048076] usb 3-2.1: new full-speed USB device number 9 using xhci_hcd
kernel: [1328571.154958] usb 3-2.1: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.154967] usb 3-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.154972] usb 3-2.1: Product: FT232R USB UART
kernel: [1328571.154976] usb 3-2.1: Manufacturer: FTDI
kernel: [1328571.154979] usb 3-2.1: SerialNumber: AH05KEIJ
kernel: [1328571.158204] ftdi_sio 3-2.1:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.158292] usb 3-2.1: Detected FT232RL
kernel: [1328571.158742] usb 3-2.1: FTDI USB Serial Device converter now attached to ttyUSB0
kernel: [1328571.256087] usb 3-2.2: new full-speed USB device number 10 using xhci_hcd
kernel: [1328571.362674] usb 3-2.2: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.362684] usb 3-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.362688] usb 3-2.2: Product: FT232R USB UART
kernel: [1328571.362692] usb 3-2.2: Manufacturer: FTDI
kernel: [1328571.362696] usb 3-2.2: SerialNumber: A5062OYN
kernel: [1328571.366032] ftdi_sio 3-2.2:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.366124] usb 3-2.2: Detected FT232RL
kernel: [1328571.366558] usb 3-2.2: FTDI USB Serial Device converter now attached to ttyUSB1
kernel: [1328571.468091] usb 3-2.3: new full-speed USB device number 11 using xhci_hcd
kernel: [1328571.594043] usb 3-2.3: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.594046] usb 3-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.594047] usb 3-2.3: Product: FT232R USB UART
kernel: [1328571.594048] usb 3-2.3: Manufacturer: FTDI
kernel: [1328571.594048] usb 3-2.3: SerialNumber: AH05KDAK
kernel: [1328571.596873] ftdi_sio 3-2.3:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.596890] usb 3-2.3: Detected FT232RL
kernel: [1328571.597085] usb 3-2.3: FTDI USB Serial Device converter now attached to ttyUSB2
kernel: [1328571.696086] usb 3-2.4: new full-speed USB device number 12 using xhci_hcd
kernel: [1328571.803239] usb 3-2.4: New USB device found, idVendor=0403, idProduct=6001
kernel: [1328571.803249] usb 3-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: [1328571.803254] usb 3-2.4: Product: FT232R USB UART
kernel: [1328571.803258] usb 3-2.4: Manufacturer: FTDI
kernel: [1328571.803261] usb 3-2.4: SerialNumber: AH05KCY0
kernel: [1328571.806660] ftdi_sio 3-2.4:1.0: FTDI USB Serial Device converter detected
kernel: [1328571.806745] usb 3-2.4: Detected FT232RL
kernel: [1328571.807221] usb 3-2.4: FTDI USB Serial Device converter now attached to ttyUSB3
It works great!
Matthew D Goldman✓ Verified Purchase•November 15, 2017
All four ports were recognized on my Macintosh laptop without having to load drivers. I needed it to help set up and configure a set of Cicso switches and a NetApp cluster. I told several of my coworkers about it so they could get one for themselves!
Works fine, driver presents strangely, heads not labeled
Kindle Addict✓ Verified Purchase•February 27, 2017
Works, but the driver presents some strange GUID-like device names on OS X. Also, in other units we've used the heads are clearly labeled so that you can match the head to the device port presented in the OS. These weren't labeled, which meant that we had to label them ourselves through trial and error.
They are working great and are less expensive because they are saving me ...
Jay✓ Verified Purchase•February 18, 2017
I have at least eight of these cable assemblies out in the field now. They are working great and are less expensive because they are saving me on USB hubs and ports. Each serial port has it's own unique serial number. I don't know if they are real FTDI or fakes, but they work really well. Build quality of the cable looks good. The USB hub chip is an FE1.1.
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