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Description
StarTech.com USB to RS232/RS485/RS422 4 Port Serial Hub Adapter - Industrial Metal USB 2.0 to DB9 Serial Converter - Din Rail MountableTransform a single USB 2. 0 port into four versatile COM ports with this rugged StarTech serial hub. Engineered for industrial environments, the four port USB to RS232 RS422 RS485 adapter comes in a durable metal enclosure and is designed for DIN rail mounting, making it ideal for control panels, factory floors, labs, and field deployments. With support for multiple serial protocols, researchers, technicians, and engineers can connect a wide range of
Transform a single USB 2.0 port into four versatile COM ports with this rugged StarTech serial hub. Engineered for industrial environments, the four-port USB to RS232/RS422/RS485 adapter comes in a durable metal enclosure and is designed for DIN rail mounting, making it ideal for control panels, factory floors, labs, and field deployments. With support for multiple serial protocols, researchers, technicians, and engineers can connect a wide range of legacy devices—such as CNC machines, barcode scanners, robotic controllers, and data loggers—without sacrificing performance or reliability. This USB 2.0 to DB9 serial converter delivers flexible, scalable connections while keeping your workspace organized and future-ready.
- Four serial ports from one USB connection: Convert a single USB 2.0 port into four COM ports, enabling rapid expansion for legacy devices and equipment that still rely on RS-232, RS-422, or RS-485 interfaces.
- Supports RS-232, RS-422, and RS-485 protocols: Each of the four ports can be configured to the appropriate protocol, providing broad compatibility with a diverse range of industrial instruments and peripherals.
- Industrial metal enclosure and DIN rail mounting: Built for harsh environments, the durable metal housing and ready DIN rail mounting simplify integration into control cabinets, enclosures, or machine panels.
- Plug-and-play USB 2.0 connectivity with broad OS support: Easy setup on compatible systems with minimal configuration; USB bus power eliminates the need for a separate power supply in many deployments.
- Independent, scalable serial channels with diagnostic indicators: Four isolated channels offer flexible configurations, while status LEDs provide quick fault diagnosis and connection verification at a glance.
Technical Details of StarTech.com USB to RS232/RS485/RS422 4 Port Serial Hub Adapter
- USB interface: USB 2.0 (backwards compatible with USB 1.x) for high-speed data transfer
- Port count: 4 external serial ports with DB9 connectors
- Supported protocols: RS-232, RS-422, RS-485 (each port configurable per device requirements)
- Enclosure and mounting: Industrial metal housing with DIN rail mounting capability for modular installation
- Power: Bus-powered via USB; no additional power supply required in typical setups
- Operating system support: Broad compatibility with Windows and Linux environments; driver availability from StarTech
- Connector type: Four DB9 serial connectors for easy connection to standard serial equipment
- Dimensions and weight: Not specified in the available information
- UPC/SKU: Not provided in the accessible specifications
How to install StarTech.com USB to RS232/RS485/RS422 4 Port Serial Hub Adapter
- Connect the USB 2.0 connector on the hub to a free USB port on your computer or compatible device.
- Mount the hub on a DIN rail inside your equipment cabinet or place it in a suitable enclosure for easy access and organization.
- Attach your serial devices to the four DB9 ports, selecting the appropriate RS-232, RS-422, or RS-485 configuration for each device.
- Power on the system and install any necessary drivers if prompted by your operating system. Visit StarTech’s official site to obtain the latest drivers and documentation.
- Configure each serial port within your software or operating system to the required baud rate, parity, data bits, and stop bits. Verify port availability in Device Manager (Windows) or /dev/ttyS*/ttyUSB* (Linux).
Frequently asked questions
- What protocols are supported across the ports? The adapter supports RS-232, RS-422, and RS-485, and each port can be configured independently to match device requirements.
- How many serial ports are provided? The unit delivers four independent serial ports accessible via four DB9 connectors.
- Do I need a separate power supply? The device is typically bus-powered via USB 2.0, eliminating the need for an external power source in standard configurations.
- Can I mount it on a DIN rail? Yes. The enclosure is designed for DIN rail mounting to facilitate integration into control panels and industrial cabinets.
- Which operating systems are supported? Windows and Linux are commonly supported with drivers provided by StarTech; always check the latest compatibility on the product page for your OS.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.2 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
My dogs favorite balls
Size: Medium
These are great for my dog who always has to have a ball in her mouth. Not too hard so I don't have to worry about her teeth. They last for ever. They do lose their shape a little over time (like I said, she always has a ball in her mouth) they become a little oval in shape. They still bounce, she still chases it and she still chews on it so I don't think she notices or cares. I've gotten her a bag full of these over time and I have only seen one that she chewed a chunk out.
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Reviewed in the United States on September 28, 2023
★★★★★ 5
My Dachshunds Love These
Size: Small
These balls are durable, flexible material, highly chewable without being easily destroyed. I stuff them with Milkbone Maro Snacks, which are just the right size to twist into the holes in the ball. My dogs literally get an hour+ chewing and chasing entertainment from these. They chew them, they sometimes 'pop' out of their mouths, go rolling across the floor, dogs chasing them. This satisfies their urge to hunt prey. Dachshunds can easily tear this kind of stuff-it-toy apart. These have lasted for a long time without tearing or shredding. I would NOT recommend them for a dog much larger than a tweenie weenie. They're a bit on the small side and might be swallowed by a larger dog. It would be cool it they also came in a larger size (and probably ball wall thickness also) for the bigger dogs to enjoy. These stuff-it chew balls are better than the kong balls my dogs had before these. Highly recommend them.
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Reviewed in the United States on April 19, 2024
★★★★★ 5
My puppy’s favorite fetch toy!
Size: Small
Update Aug 27, 2024: After 10 months, these are still his favorite ball. He’s obsessed with fetching and plays with them all day. They do bounce really high. Unfortunately, the small size aren’t available for sale anywhere anymore. I tried the medium size, and he has a bit of trouble hanging on to them, but he manages. Weirdly, he prefers the orange one, but he also plays with the blue one.
My 7 month old Shih Tzu puppy loves to fetch, and these are his new favorites. They’re small enough to fit in his mouth, and they are made of hard plastic, so he’s able to hold on to them. They have a lot of bounce, and this adds to the fun for him. I highly recommend them.
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Reviewed in the United States on December 17, 2023
★★★★★ 4
Genuinely bummed that these great balls can’t stand up against my Chloè.
Size: Medium
I love all the Chuckit brand of balls. I found that the Strabo and glow balls in the Chuckit line are the softest, and as such, don't last as long as the rest of Chuckit line of balls. Having said that, they do last longer than than every other brand I've tried (and I do believe I’ve tried every brand available on the market today.)
The strato balls do bounce higher than any of the other balls in the Chuckit line. They really are a good value.
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Reviewed in the United States on March 30, 2022
★★★★★ 5
Great dog balls at a great price
Size: Medium
The balls are a favorite for my dog. I could have done without the hole through the middle because I don't do treats in balls anyway. My dog loves balls for their own merit. I needed replacement balls for my Nerf Dog Ball launcher. It seems the originals have disappeared from the market. I took a chance because the price is right and this Chuck-it ball works very well so we're liking this ball a lot. So far my Dachsund, who can destroy a tennis ball (the kind they are selling as Nerf Dog replacements) in 3 minutes has not done any damage to this one so that's a win. I recommend this as a much better ball than the fuzzy tennis balls. I like the colors too since many dog toys are green (which gets lost in the lawn, etc.) or red (even though dogs have red/green color blindness. Blue and orange are good and pretty easy to find. I liked these well enough that this set was my second purchase so I will have spares in case the others are lost.
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Reviewed in the United States on May 21, 2023