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Description
Keyspan USA19HS USB-A to Serial (RS-232) Adapter (Mac/PC)The Keyspan USA19HS is a USB A to serial (RS 232) adapter for Mac and PC computers. It is meant for connecting legacy serial RS 232 devices with nine pin DE 9 connectors to current computers having only USB ports. Throughput Device communications at up to 230 Kbps System Requirements Windows 98 Me 2000 XP Mac OS 8. 6 or greater UPC: 672603000413 Packaging Info Package Weight 0. 35 lb Box Dimensions (LxWxH) 7. 9 x 5. 4 x 1. 7" In the Box Keyspan
The Keyspan USA19HS is a USB-A to serial (RS-232) adapter for Mac and PC computers. It is meant for connecting legacy serial/RS-232 devices with nine-pin DE-9 connectors to current computers having only USB ports.
- Throughput
- Device communications at up to 230 Kbps
- System Requirements
- Windows 98/Me/2000/XP
Mac OS 8.6 or greater
UPC: 672603000413
| Packaging Info | |
|---|---|
| Package Weight | 0.35 lb |
| Box Dimensions (LxWxH) | 7.9 x 5.4 x 1.7" |
In the Box
Keyspan USA19HS USB-A to Serial (RS-232) Adapter (Mac/PC)
- Utility Software CD
- 5-Year Warranty
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
4.6 ★★★★★
Based on 1860 reviews
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Product Reviews
★★★★★ 5
Love these floating shelves!
Color: Oak, Number Of Shelves: 2, Size: 36"W x 6.5"D
These shelves are perfect for my kitchen! They were easy to install. All the hardware was included. They are durable and sturdy and gave my kitchen wall an instant face lift!
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Reviewed in the United States on April 14, 2026
★★★★★ 3
Holes in brackets are not spaced for studs!
Color: White, Number Of Shelves: 2, Size: 67"W x 6.5"D
So the quality of this not great, but good enough and they look nice enough on the wall. However, the bracket holes are not spaced at 16" intervals. WTF? I'm not sure who designed this thing. The molly plugs that came with it look OK, but to play it safe I used a cobalt steel drill bit and made my own holes in the bracket. Easy enough with some wd40. My other pick with this is that the screws to anchor the shelf to the bracket are black and and very obvious... they should have supplied some kind of cap.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Nice, make sure the measurements are what you want!
Color: Black, Color: Black
I like these shelves, just make sure to read the measurements , because they are a little narrow, but perfect for what I used them for. They added a sleek look to my wall. I'm a very plain Jane kind of person and I've gotten compliments from my friends. I used them to put my crystal collection on and they are holding up. I did use these new screws and anchors from tiktok to hold them up, not the screws these came with because I don't like the plastic anchors. The size is perfect and with a little help with straightness, I got four up out of six.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Me encantó el producto
Color: White, Color: White
Encantada 💜me gusto mucho lo recomiendo
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Reviewed in the United States on April 20, 2026
★★★★★ 1
Glue separated within five minutes of being hung up
Color: White
I do not recommend. As I was hanging them, the shelves looked like they were already going to separate. I hung them up and I put a couple books on a few different ones as well as some trinkets not weighing even 5 pounds (so not even close to the weight). Within five minutes. One of the shelves snapped. They look okay, are light and are super easy to use, but the quality is horrible. I would say the best part about this is the hardware and mini levels it comes with. Definitely not worth it. I’m sure you can find something better for the price.
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Reviewed in the United States on April 29, 2026