


SMA 485USPB-NR Interface Communication Card
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
SMA 485USPB-NR Interface Communication CardThe RS 485 communication system is for those situations where a power line carrier won't work. When you have to link not just several inverters, but several Sunny Boy Controls, RS 485 is the tool to use. This current source bus line system allows simultaneous communication with many nodes to one central controller. And with its ability to link several Sunny Boy Controls the number of Sunny Boy inverters that you can control from one computer becomes
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- 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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4.5 ★★★★★
Based on 2436 reviews
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Product Reviews
★★★★★ 5
Works perfectly for what I needed
Size: 5 FT (2 prong plug), Color: White
We have an older house and I needed a 3 prong plug in our living room and this has absolutely done the job. I love that I can now plug my computer in and as a bonus, I can charge my phone if needed. The cord link is longer than I needed for the living room but worked great for a recent trip.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
★★★★★ 5
GOOD VALUE/GOOD PRODUCT
Size: 5 FT (2 prong plug), Color: White
FINE. HOWEVER YOU BETTER UNDERSTAND HOW MANY WATTS EACH DEVICE IS PULLING IF YOU TRY TO USE ALL 12 AC OUTLETS. GOOD VALUE
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 4
Great for behind a dresser
Size: 5 FT (2 prong plug), Color: White
Works great. Plug lays flat against the wall. Doesn't charge great on USB C ports, but it'll get you by. USB charging is 2 out of 5. Quality seems 4 out of 5.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Good product
Good product
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Functional and easy to use
Size: 6.5 Ft, Color: Black
Great product and the perfect value. It does exactly what I needed it to.
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Reviewed in the United States on February 19, 2026
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