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RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC Connector
RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC Connector
RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC Connector
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RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC Connector

Marsoni M251S
Sale price$139.50
Pay 4 payments of $34.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC ConnectorThe STF 300C WA20 provides a fiber converter solution to extend RS 232 or RS 422 RS 485 transmission distance up to 20km over single mode fiber (WDM). The converter is equipped with multiple interface circuits, for connection to RS 232, RS 423, or RS 422 485 (2 or 4 wire). The STF 300C WA20 secures data transmission over EMI resistant fiber at speeds up to 256kbps for RS 232 or up to 1024kbps for RS 422 485.
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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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4.9 ★★★★★
Based on 717 reviews
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A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 3
Not well made
I have used these for 2 weeks now and one of them has a hole in the sole... I won't ever buy them again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2025
V
Verified Purchase
View from the hills
San Leandro, US
★★★★★ 5
Enables the person to move around while wearing.
These silicon socks look a bit odd at first glance but they work great and best of all, any lotions and oily creams are contained on the inside so you can walk around. They are very soft. I haven't had them long so I can't comment on durability, but they are not made of lightweight material.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
T
Verified Purchase
Theresa C.
San Leandro, US
★★★★★ 5
They Work
Husband struggles with cracking feet, he has tried so many home remedies these work great to keep the moisturizer on and the carpet dry!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
R
Verified Purchase
raymond jones
Draper, US
★★★★★ 1
Not worth the time or money
Never buy these, they causes feet cramps and bad pain even if you use foot pain cream
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
G
Verified Purchase
Greg from MidW
West Palm Beach, US
★★★★★ 3
Does the job but dangerous to walk with!
Does the job but dangerous to walk with: foot is sliding inside the sock if the foot was treated with cream or lotion prior. It is uncomfortable to sleep with but a necessary hurdle to heal your heels!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025

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