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Description
SFP-25G-ER-I Cisco® Compatible Transceiver SFP28 25GBase-ER (1310nm, SMF, 40km, LC, DOM, Ind Temp)SFP 25G ER I Cisco Compatible Transceiver SFP28 25GBase ER (1310nm, SMF, 40km, LC, DOM, Ind Temp) ATGBICS Cisco Compatible SFP 25G ER I SFP28 25GBase ER form factor network transceiver supports a distance of up to 40km over single mode fibre (SMF) using a wavelength of 1310nm via an LC Duplex connector. This product operates within an industrial temperature range. Digital optical monitoring (DOM) support is also present enabling real time monitoring
SFP-25G-ER-I Cisco® Compatible Transceiver SFP28 25GBase-ER (1310nm, SMF, 40km, LC, DOM, Ind Temp)
ATGBICS Cisco® Compatible SFP-25G-ER-I SFP28 25GBase-ER form factor network transceiver supports a distance of up to 40km over single-mode fibre (SMF) using a wavelength of 1310nm via an LC Duplex connector. This product operates within an industrial temperature range. Digital optical monitoring (DOM) support is also present enabling real-time monitoring of the parameters of the fibre optic transceiver.
Our product meets the specification of Cisco® SFP-25G-ER-I and we proudly offer a compatibility guarantee and limited lifetime warranty. Our rigorously tested products record a unique traceable serial number and are fully compliant with all MSA (Multi-Source Agreement) and IEEE standards & protocols.
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4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Mi hijo de 7 años lo ama
Format: Paperback
Mi hijo lo lee y lo relee, le encantó!
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Great Start
Format: Hardcover
My 9 year old doesn’t like reading. When it’s time for him to read to us, this is his go to book. Chapter books are a bit intimidating for him. He is eager to read about Max and is wanting to ready without us asking. We are looking forward to book 2.
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Reviewed in the United States on November 24, 2025
★★★★★ 5
Kids really enjoy this book
Format: Paperback
Good book. The kids really liked it.
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Reviewed in the United States on December 13, 2025
★★★★★ 5
Wonderful. This is the book on time I've been looking for.
Format: Kindle
This is the book about time that I wanted. Beautifuly done. Thank you.
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Reviewed in the United States on May 26, 2025
★★★★★ 3
Not so great unless you are willing to accept a certain amount on faith.
Format: Paperback
Similar criticism to my review of the Black Holes book: "Starts off ok, but quickly loses you. I have an extensive science education and quickly got lost. This topic cannot be easily explained in a brief book - the author is forced to jump over certain building blocks, and that just leaves the reader confused. I think this book series is good, but maybe not for abstract science topics."
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Reviewed in the United States on February 11, 2026