Skip to content

POWERSHIELD SafeGuard 750VA/450W Line Interactive, Powerboard Style UPS with AVR, Telephone or Modem Surge Protection. Wall Mountable.

Marsoni M251S
Sale price$107.50
Pay 4 payments of $26.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
POWERSHIELD SafeGuard 750VA/450W Line Interactive, Powerboard Style UPS with AVR, Telephone or Modem Surge Protection. Wall Mountable.Features: Automatic Voltage Regulation (Buck and Boost) Light weight compact and elegantly designed Intelligent microprocessor control Monitoring and shutdown software included Fax modem LAN surge suppression port Overload protection and alarm Output short circuit protection Start on battery function (cold start) USB communication Easy user replacable battery Australian New Zealand approved sockets Wall mountable Fast charging 90[[][%]] in 4 hours
Easy Shipping

Quick Dispatch:

Your POWERSHIELD SafeGuard 750VA/450W Line Interactive, Powerboard Style UPS with AVR, Telephone or Modem Surge Protection. Wall Mountable. orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your POWERSHIELD SafeGuard 750VA/450W Line Interactive, Powerboard Style UPS with AVR, Telephone or Modem Surge Protection. Wall Mountable. ships.

Need Help?
Questions about POWERSHIELD SafeGuard 750VA/450W Line Interactive, Powerboard Style UPS with AVR, Telephone or Modem Surge Protection. Wall Mountable., sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for POWERSHIELD SafeGuard 750VA/450W Line Interactive, Powerboard Style UPS with AVR, Telephone or Modem Surge Protection. Wall Mountable. in your area.

Get Shipping Estimates

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]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 75 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amiga95
Dallas, US
★★★★★ 5
This IS where you start to understand it all!
Format: Paperback
While I haven't received my Second Edition book yet I do have the First Edition and I can say it's very thorough and well explained to even the beginner level. If you're trying to learn both Linux and Cybersecurity this IS the place you want to start. It will save you a ton of headaches and you're getting VERY VALUABLE skills you can use in any scenario. I would call it an advanced starting point. Linux itself can be somewhat difficult and daunting to learn and understand if you're coming from a strict use (Windows in my case) OS 25+ years. This book bridges that gap effectively and you can absorb the knowledge with a little work. Also watching OTW's video on YouTube with David Bombal is an excellent follow along source. In my opinion, OTW does the best job of explaining exactly what you need to know. And follow it up with a video or two of how to understand the Linux file system and you'll soon be set to go. David Bombal's vids on setting up VM on your computer are also very helpful! If your intention is to get into Cybersecurity from zero knowledge this IS the best point to gain valuable knowledge whether it's to crack into IT, Cybersecurity or just for your own knowledge, this book is worth 10x it's price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025
D
Verified Purchase
DF
Lexington, US
★★★★★ 5
Linux for Hackers
Format: Paperback
If you are serious about learning Linux as well as a career in White Hat hacking this is an excellent book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
M
Verified Purchase
Mark From Philly
Lake Worth, US
★★★★★ 5
The Best Introduction to Linux
Format: Paperback
This is the best introduction to Linux I've found. Clear, concise, and practical.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
J
Verified Purchase
Jesse
Lowell, US
★★★★★ 5
Looks like good information
Format: Paperback
Haven't had a chance to read yet but just skimming through it I'm very excited to get started on it. Looks like it has a lot of good information to start leaning Linux.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2025
H
Verified Purchase
Hannah Kelleher
Houston, US
★★★★★ 5
Read This In One Sitting…..
Format: Hardcover
Not pregnant yet, but this book was the perfect balance of information and real-life story. It was so relatable and reassuring—I suddenly didn’t feel crazy for all the hours of baby research I’ve been doing. I never felt pressured, just encouraged and entertained while learning so much. Such a refreshing read, you won’t regret getting this one!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025

recommand products