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DLINK 5-PORT GIGABIT INDUSTRIAL POE SWITCH WITH 4 1000BASE-T POE PORTS AND 1 SFP PORT, OPERATING TEMP UP TO 75?C, DIN RAIL MOUNTABLEDLINK 5 Port Gigabit Industrial PoE Switch Enhance your network infrastructure with the DLINK 5 Port Gigabit Industrial PoE Switch, designed for high performance and reliability in demanding industrial environments. This rugged switch is perfect for powering and connecting multiple devices with ease. Key Features: 5 Gigabit Ports: Includes 4 x 1000BASE T PoE (Power over Ethernet) ports and 1 x SFP (Small Form factor Pluggable) port for versatile
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Best in 7 days
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Best in 7 days
Best in 7 days
4.6 ★★★★★
Based on 454 reviews
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Product Reviews
★★★★★ 5
Must have for programmers
Format: Paperback
It's a simple, easy-to-use guide for learning Python programming.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
★★★★★ 5
Very informative and easy to understand
Format: Paperback
I love how Charles wrote this book, I read it slowly throughout the year and was easily able to digest all the examples and illustrations provided and have got a better and broader understanding of Code, software, hardware, batteries, lightbulbs, history and much more!
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Great Place to Start
Format: Paperback
Clear and entertaining
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 5
Engaging Read for Beginners and Techies Alike
Format: Paperback
An engaging and accessible exploration of how computers really work. The author breaks down complex concepts into simple, relatable explanations, making topics like binary, logic gates, and basic circuits far less intimidating. For newcomers, it’s a great way to build a foundational understanding of computer theory with just a touch of electrical engineering.
As someone with a technical background, I still found it entertaining; the examples and analogies added fresh ways to frame ideas I already knew. It’s the kind of book that can bridge the gap between “I use computers” and “I understand what’s happening under the hood.”
Highly recommended for anyone curious about what makes hardware and software tick, whether you’re starting from scratch or just want a new perspective.
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Reviewed in the United States on August 19, 2025
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up.
Recommend to everyone wanting to become a programmer, or just interested in computers.
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Reviewed in the United States on January 12, 2026
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