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Description
Parallax USB to Serial (RS-232) Adapter with CableThe Parallax USB to Serial (RS 232) adapter provides a Virtual Com Port for devices that have a DB9 (9 pin) serial female socket and need to connect to a computers USB port. Compact and economical, this adapter utilizes the FTDI FT231X chip. Updated FTDI USB drivers for Windows are included in the latest versions of the BASIC Stamp Editor and Propeller Tool software packages. You may also download the Windows drivers separately from our site, or
The Parallax USB to Serial (RS-232) adapter provides a Virtual Com Port for devices that have a DB9 (9-pin) serial female socket and need to connect to a computer’s USB port. Compact and economical, this adapter utilizes the FTDI FT231X chip.
Updated FTDI USB drivers for Windows are included in the latest versions of the BASIC Stamp Editor and Propeller Tool software packages. You may also download the Windows drivers separately from our site, or drivers for other operating systems directly from FTDI.
Features:
- USB Version 1.1 and 2.0 compatible
- Connects to your computer with a USB A to Mini-B cable (not included)
- DB9 male socket to connect to your board’s serial programming and debugging port
- FTDI Drivers are included in most operating systems and Parallax programming software
- Drivers for different operating systems are available from FTDI
Parallax USB to Serial (RS-232) Adapter Key Specifications:
- Power requirements: Regulated 5 V from USB port or powered hub.
- Communication: Full speed USB, full duplex serial from 300 baud to 3 Mbaud
- Dimensions: 1.7 x 1.2 x 0.5 in (51 x 16 x 12 mm)
- Operating temp range: +32 to +158 °F (0 to +70 °C)
- PCB assembled, tested, and completed in Rocklin, California
Easy to Use:
- Install one of these Parallax programming environments (BASIC Stamp Editor, Propeller Tool).
- Or, download the USB drivers separately from the Downloads link
- Connect the USB to Serial Adapter to your PC with a USB A to Mini B cable
- A message from your system tray will say your hardware is installed and ready to use (Windows)
- Connect the adapter to your device’s DB9 connector
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]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Leave the Laptop at Home - Content Backups
Style: Data Transfer (10Gbps)
I purchased this hub so I could leave the laptop at home and do backups of my GoPro Cameras and Drone footage to an SSD drive. I used FilePro Explorer app on my iPhone to set up tasks to do backups of my content from the SD cards to SSD drive. The one hiccup I encountered is FilePro Explorer (or this hub, not sure which) wouldn't recognize my GoPro cameras as a data source, so I had to remove the SD card from my GoPro Cameras, insert the card into another USB hub that had an SD card adapter (like the one here https://amzn.to/4dlkhMt ) and plug that into the Satechi Hub as another drive source, which it then recognized my SD card from the GoPro camera. So basically two small USB hubs and an App on my iPhone replaced what I would normally do with my laptop. Big weight savings when you're on a bike or motorcycle traveling.
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Reviewed in the United States on May 20, 2026
★★★★★ 1
Flaky and Fickle
Style: Data Transfer (10Gbps)
Worked great for a month. Went to plug in a spare ssd to back up files from tablet and it never has worked since. No data or power through any ports. The light turns on and stays solid but is just dead. Waste of my money for now it is outside of return and I am having troubles getting in touch with Satechi.
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Reviewed in the United States on December 21, 2025
★★★★★ 5
Love this thing
Style: Data Transfer (10Gbps), Style: Data Transfer (10Gbps)
I’m really impressed with my Satechi power passthrough 4 port USB C Hub.
It’s really slick, streamlined, and really good looking too.
It works well, doesn’t get hot or even warm to the touch.
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Reviewed in the United States on December 12, 2025
★★★★★ 3
Works, but man it is SLOW
TL/DR review follows: This thing does what it claims to do (gives you 4 USB ports that you wouldn't have otherwise), but the data transfer speed of any SSD I connect through this Satechi Hub is half what it is when the SSD is connected via my OWC Hub (data transfer rate is double when connected via the OWC Hub vs. being connected via the Satechi Hub). I'll keep this Satechi gadget (in a drawer) for times when I really, really need more USB C ports and therefore will be more willing to tolerate the data transfer speed slowdown penalty. I cannot possibly consider this to be a primary data transfer pathway however.
These above results are from an M1 Mac Mini with 16GB RAM and MacOS Monterey with speed measured by Blackmagic Disk Speed Test utility.
I did not get similar results on my 11th Gen Intel Core i9-11900 processor PC running Windows 11. Data transfer rates are the same (SLOW) when any USB drive is connected directly to the PC USB C port or when connected via the Satechi Hub. Highly worth mentioning, though, is that all data transfer speeds on the PC are HALF the speed obtained on the Mac Mini when connected via my OWC Hub. All PC data transfer rates were measured by CrystalDiskMark utility
One interesting anomaly worth mentioning is that the PC will not eject USB drives if they are connected directly to the single USB C port on the PC BUT it WILL eject any/all USB drives if they are connected via the Satechi Hub. This particular PC has never been able to eject USB devices correctly. The Mac Mini ejects all these same USB devices correctly no matter how they are connected. All USB drives are formatted Windows NTFS whether connected to the Mac Mini or the Windows PC (for those who care)
Conclusion: An interesting experiment, but for me the Satechi Hub is not worth what I paid for it. I can easily see it being a worthwhile investment for many, assuming undemanding use cases, however
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Reviewed in the United States on April 26, 2022
★★★★★ 5
So good!
Size: 4 Big Kid, Color: Aqua/Multi
As always sketchers give her great support nd comfort while being cute and easy on off! Slip resistant, breathable and size is spot on and super durable wash great and dry quick
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Reviewed in the United States on October 28, 2025