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RS-232/422/485 To Fiber Converter, WDM-B 20KM, TX1550nm - RX1310nm, 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-B 20KM, TX1550nm - RX1310nm, SC ConnectorThe STF 300C WB20 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 WB20 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.
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4.4 ★★★★★
Based on 192 reviews
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Product Reviews
M
Verified Purchase
Michelle Ruiz
Grantham, US
★★★★★ 4
Good toy for Kittens
Size: 30 Pcs
Seemed safe to play with your cat. Entertain to have them chase . Cute to seem cats hunt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
S
Verified Purchase
Shelia I.
Houston, US
★★★★★ 5
Stormie approved.
Size: 30 Pcs
Stormie loves this!! Cute, fun, fair price
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Reviewed in the United States on February 11, 2026
B
Verified Purchase
Bobby
Houston, US
★★★★★ 3
It's funny but cheap
My cat does enjoy chasing the little fluff balls around and then batting them for a few seconds than looking back at me for more. It's good for some good laughs and entertainment but the fluff balls and little plastic shooter are honestly dollar tree level quality. The shooter has one flimsy spring and looking at the placement inside it seems like something that'll fall apart pretty fast. Not worth $11 or $8, this should be >$5 easily.
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Reviewed in the United States on October 8, 2024
V
Verified Purchase
Victor
Lexington, US
★★★★★ 1
Dangerous
Size: 30 Pcs
My 1 year old cat loved to chase the balls, but who ever designed these balls should be ashamed of their selves. They balls are to small and easy for the cat to chew on and swallow!!! My cat just got done with an extremely costly surgery because he swallowed 3 of the balls he must of hid them somewhere because he usually did not play with them unattended. Never mind the pain my poor sweet baby just went through. I would never purchase something where somebody has not tested the size and shape of something to make sure that it is safe for an animal, sad to assume that somebody would create such a toy without checking that out and putting a animal through this nightmare. This is the first time in my that I have ever done a review, but I would never want somebody to go through what my cat and I have just experienced. Had to him to the emergency room on a Sunday to a follow up appointment at the vet on a Monday and then another follow up appointment on a Tuesday to redo the ultrasound to on Wednesday another appointment to check them and then him having to go in for an emergency surgery on Thursday. The problem is, he didn’t eat them all at one time so they obviously were sitting in his tummy until he started getting sick and throwing up. I will be checking into this company a bit deeper as well, so please be aware and don’t ever purchase something like this.
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Reviewed in the United States on September 19, 2024
M
Verified Purchase
Moment
Alexandria, US
★★★★★ 5
All 3 cats say 5 stars!
Size: 100 Pcs
The cats love to chase these balls. And it comes with 100! Which is the perfect amount. So far the gun is still working well. I just find you need to barely put the pom pom in after cocking the gun. If you push the pom pom all the way in, it wont shoot. More often than not though, I just throw the balls for the cats. The gun shoots them very far, the cats enjoy chasing them, but they prefer to jump up and try to catch them, which they cant do when I use the gun
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Reviewed in the United States on January 26, 2025

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