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RS232 To RS232 Repeater with Surge and 3-way Isolation Protection

Marsoni M251S
Sale price$120.00
Pay 4 payments of $30.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
RS232 To RS232 Repeater with Surge and 3-way Isolation ProtectionThe STS 1921SI RS232 to RS232 Isolation Adapter is designed for your PC, workstation, thin client, or server to provide an instant isolation solution to the serial devices. The STS 1921SI equipped a female DB9 connector that can be connected to your PC. The RS232 port, configured as a DCE port, has a female DB9 connector with pins for all RS232 signals (TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI and GND) are isolated coupled to the male DB9 connector
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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.
  • To process your return/exchange, please contact us at [email protected]
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Amazon Customer
Waukegan, US
★★★★★ 5
Great fit
Fit perfectly.
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Reviewed in the United States on February 9, 2026
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Matthew D. Thames
Whiting, US
★★★★★ 5
Great filter
Works fine didnt have to pay for the shop to put it in so great savings.
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Reviewed in the United States on March 30, 2026
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Amazon Customer
Battle Creek, US
★★★★★ 5
DIY, super easy to replace.
Fit 2018 crv. I like to change out my air filters before taking my car to the dealership for an oil change. Saves a ton of money to DIY. Easy to do perfect fit.
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Reviewed in the United States on May 30, 2026
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Yadira Purdue
Carnegie, US
★★★★★ 5
Ok
Ok
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Reviewed in the United States on May 3, 2026
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Mark Stanley
Whiting, US
★★★★★ 5
make sure you get the right one for your model and engine
Fit was perfect
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Reviewed in the United States on January 31, 2026

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