


Industrial 4-Port RS-232 to USB 2.0 High Speed Converter with Surge & Isolation
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Industrial 4-Port RS-232 to USB 2.0 High Speed Converter with Surge & IsolationThe UTS 404A SI is an Isolation and Surge Protection 4 Port RS 232 to USB serial adapter that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB). The UTS 404 provides the scalability toquickly adapt to new USB technologies. Multiple modules can be added to a single USB interface allowing you to add RS232 connectivity as needed. Complete product line offers many choices help you to expand
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Your Industrial 4-Port RS-232 to USB 2.0 High Speed Converter with Surge & Isolation orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 1833 reviews
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Product Reviews
★★★★★ 5
Healthy, Slightly Soft/Chewy Treat!
VERY pleased to have found these! Wanted something to offer Mookie as a "special treat" (a step up from Milkbones, but NOT long-lasting) that was healthy and easily digestible. He wasn't sure what to make of them at first... they're fairly soft and a little chewy, and they just smell like FRESH sweet potatoes -- not any fake meat or seasoning.
Once he started chewing, however, he got very excited about the new treat, and now when he hears the bag being handled/opened, he comes running and does his little happy dance! We'll be keeping these on hand because the quality and reasonable price - combined with the LACK of tummy distress and his enjoyment - make this a "go-to" special reward.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
★★★★★ 5
A Nutritional Treat!
My German Shepherd loves this so much, I sometimes use it as a training treat! Sweet Potato is beneficial to dogs. The only complaint I have is the size consistency from bag to bag.
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Reviewed in the United States on May 8, 2026
★★★★★ 4
They used to be soft and moist but not now
These used to be one of my dogs’ favorite sweet potato treats, but they’ve gotten too hard and thick to cut for their morning snack or cut for their puzzle pieces. Because they’re not only too hard to cut, they’re also too hard for them to eat. Both, my Maltese and Shih Tzu love sweet potato treats, but they leave the dry ones behind. Since something made the Shih Tzu so sick that I had to spend a small fortune at the vet trying to make her better, she avoids all dry treats now and unfortunately that includes a lot of necessary nutrients. I hope these go back to being soft and moist the way they used to be!
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Reviewed in the United States on March 25, 2026
★★★★★ 5
A favorite healthy treat for my 6 pups!
My six dogs absolutely love these treats! I just ordered my third bag.I love knowing they are healthy and good for dogs with sensitive stomachs. The smell is great and reminds me a little bit of Thanksgiving. Each bag has several different sized treats so I can give my bigger dogs a bigger one and smaller dogs a smaller piece. They are wavy like a ruffle potato chip, but chewy, which is great because that means it takes my pups a minute or two to eat. They are a great price because my local grocery store sells the same type of treat in a smaller size bag at a higher price than these.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
A sweet potato for a fussy little girl no more 😁
I have a little Jack Russell and she is a fussy little thing😂 I’ve gone through so many treats that she won’t eat but when I found these treats, she loves them and that’s all I have to go off of is that my fussy little dog loves these treats,so to me they’re a good treat, but that doesn’t mean every dog is gonna love them so I just want to make that clear. I hope your dog will enjoy them the way my little girl does.😉
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
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