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Description
Vertiv Liebert GXT5 UPS - 3kVA/2700W 208V | Online Rack Tower Energy Star L6-20PProtect your critical IT equipment with the Vertiv Liebert GXT5 UPS, a compact online double conversion power solution engineered to shield servers, storage, and networking gear from outages, sags, and disturbances. Designed for both data centers and remote IT closets, this 3 kVA 2700 W unit delivers clean, continuous power, scalable runtime, and intelligent management. Whether your workload demands uninterrupted uptime for databases, virtualization,
Protect your critical IT equipment with the Vertiv Liebert GXT5 UPS, a compact online double-conversion power solution engineered to shield servers, storage, and networking gear from outages, sags, and disturbances. Designed for both data centers and remote IT closets, this 3 kVA / 2700 W unit delivers clean, continuous power, scalable runtime, and intelligent management. Whether your workload demands uninterrupted uptime for databases, virtualization, or network devices, the Liebert GXT5 provides reliable power conditioning and robust protection with a flexible rack-to-tower design that fits tight spaces and evolving IT layouts.
- Online double-conversion power with precise conditioning delivers a continuous, clean sine-wave output and near-zero transfer time during outages, sags, or line disturbances. This topology isolates loads from input irregularities, reducing the risk of data corruption and equipment damage.
- 3 kVA / 2700 W capacity with scalable runtime supports mid-range servers, storage, and networking gear with headroom for growth. When you need longer runtimes, add external battery modules (EBMs) to extend backup time without sacrificing performance during outages.
- 208V input and output with L6-20P plug optimized for North American data-center power environments, offering straightforward integration with standard 208V distribution and minimizing conversion losses while delivering reliable, regulated output to connected equipment.
- Rack-to-tower versatility combines a compact footprint with flexible deployment. The Liebert GXT5 can be mounted in a rack or positioned as a tower, featuring rails and a design that accommodates evolving space requirements in data rooms, server rooms, and edge deployments.
- Energy Star certified for efficiency and lower operating costs – engineered to optimize energy use, support intelligent power management, and reduce total cost of ownership while maintaining peak performance for critical loads.
Technical Details of Vertiv Liebert GXT5 UPS
- Power rating: 3 kVA / 2700 W
- Topology: Online double-conversion
- Input voltage: 208 VAC
- Output voltage: 208 VAC nominal
- Output waveform: True sine wave
- Form factor: Rack/Tower convertible
- Plug type (input): L6-20P
- Protection: Surge and short-circuit protection on input and output
- Communications: USB and RS-232; optional Network Management Card for remote monitoring
- Battery: Sealed VRLA battery with options for external battery modules to extend runtime
- Efficiency: Energy Star certified for energy-conscious operation
How to install Vertiv Liebert GXT5 UPS
- Choose the installation location based on space, ventilation, and accessibility. Decide whether you will deploy the unit in a rack or as a freestanding tower, and ensure there is adequate clearance for airflow and service access.
- If mounting in a rack, install the provided rack rails and secure the UPS to the rack frame. Ensure the orientation allows convenient access to the input plug and the outlets used by protected equipment.
- Connect the input power using a compatible 208V circuit with the L6-20P plug. Verify that the outlet or breaker supplies the correct voltage and amperage for safe operation.
- Connect protected devices to the UPS output outlets, ensuring total load does not exceed 2700 W. Distribute critical devices across outlets to minimize risk of overload during an outage.
- Attach communications cables (USB and RS-232) and install the bundled management software or configure the optional Network Management Card if remote monitoring is required. Run a self-test and verify basic functionality and alarms.
- If you plan to extend runtime, connect external battery modules (EBMs) according to the product manual. Configure runtime expectations in the management software and set up automatic shutdown policies for safe, orderly power-downs when necessary.
Frequently asked questions
- What loads can the Liebert GXT5 support? It is designed for mid-range IT loads, including servers, storage devices, and network gear. The exact load should stay within the 2700 W rating, with additional runtime achievable through external battery modules.
- Can I extend runtime with external batteries? Yes. The GXT5 supports external battery modules (EBMs) to scale backup time without compromising performance during normal operation.
- Is the unit energy efficient? Yes. The Liebert GXT5 is Energy Star certified, delivering efficient operation and helping reduce overall energy costs.
- Can this UPS be mounted in a rack and used as a tower? Absolutely. Its rack-to-tower compatibility provides flexible deployment to suit data center layouts, edge environments, or IT closets.
- How do I monitor and manage the UPS? Monitoring is supported via USB and RS-232 connections, with optional network management cards for remote oversight. Liebert monitoring software can be used to track status, alarms, and runtime.
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4.1 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
We need more people like Ross!
Format: eTextbook
Ross work is must-read for people who are enthusiasts about security or professionals in the field.
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Reviewed in the United States on December 28, 2021
★★★★★ 5
An absolute must for everyone dabbling with Unity 6 Game Development
Format: Paperback
Half of this book is about C# (until Chapter 6), and the other half is about actually making games. The book is very well written, and it is everything I needed to get a few problems solved with Unity 6 projects. I love how clearly things are explained, and the only thing I wish for is that I was able to spend more time delving into this while maintaining my financial status...
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Reviewed in the United States on January 3, 2026
★★★★★ 5
A Seasoned Developer's Fresh Perspective on Game Development
Format: Paperback
Finally, a game dev book that respects your existing programming knowledge
As someone who's spent two decades architecting enterprise web applications in C# and ASP.NET, I approached game development with what I thought was a solid foundation. I was wrong—not about C#, but about how differently it's applied in game engines. After five frustrating years of trying to bridge that gap through scattered tutorials and documentation, Harrison Ferrone's eighth edition finally gave me the structured path I needed.
What This Book Gets Right for Experienced Developers:
The pacing is deceptive. Yes, it starts with programming fundamentals, but don't skip ahead. Ferrone's approach to OOP in the context of Unity's component architecture was revelatory. In web dev, I'd been writing services, repositories, and dependency injection for years. Here, the MonoBehaviour lifecycle and component-based thinking required a genuine mental shift that the book handles exceptionally well in chapters 5-6.
Chapter 10's revisit of types and methods isn't redundant—it's strategic. By this point, you've written enough Unity scripts to appreciate why game code patterns differ from traditional enterprise patterns. The discussion of value types vs reference types hits differently when you're optimizing frame rates instead of HTTP response times.
The Unity 6 Update Matters:
Having struggled with outdated Unity tutorials for years, the Unity 6-specific content is invaluable. The screenshots are comprehensive (full-screen mode can make text small, but the GitHub repo and graphics bundle solve this). More importantly, the code samples reflect current Unity APIs and best practices, not deprecated approaches that still litter Stack Overflow.
Where It Shines for Career Transitioners:
Chapters 11-13 are worth the price alone. LINQ in Unity isn't just about querying collections—it's about performance considerations I never had to think about in web apps. The coverage of generics, delegates, and events finally connected how Unity's event system relates to patterns I already knew, but in a real-time context where every allocation matters.
The serialization chapter (12) bridged my understanding of data persistence from databases and JSON APIs to Unity's PlayerPrefs and ScriptableObjects. This practical grounding is what most tutorials skip.
Minor Quibbles:
The FPS prototype is solid for learning, but I wish there was more discussion of common anti-patterns experienced developers bring from other domains. I still catch myself over-engineering solutions when Unity's component system offers simpler approaches.
Also, while the book touches on performance, those coming from async/await-heavy web development will need supplementary resources on Unity's coroutines and the Job System for more complex scenarios.
Bottom Line:
If you're a professional developer trying to break into game development, stop collecting random Udemy courses. This book provides the structured progression and context-appropriate examples that respects your intelligence while teaching you to think like a game developer. The C# you know is necessary but not sufficient—Ferrone bridges that gap methodically.
After years of false starts, I finally have a working game prototype and, more importantly, the mental models to keep building. That's worth significantly more than the cover price.
Disclosure: I received an advance review copy from Packt Publishing. This honest review reflects my genuine experience as a career-changing developer.
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Reviewed in the United States on October 21, 2025
★★★★★ 5
A Worthy Touchstone for Anyone Who Wants to Master Unity
Format: Paperback
Harrison Ferrone’s Learning C# by Developing Games with Unity 6 is one of the strongest beginner-to-intermediate Unity guides I’ve read: carefully structured, patient in its explanations, and quietly packed with insight about how Unity 6 and C# truly work together. I read the physical edition while sitting in front of a blank Unity project, and the experience felt like having a seasoned sailor point out the currents of a river I’ve been navigating for years. You see the familiar terrain differently.
The book’s early decision to spend real time on C# fundamentals is a welcome choice. Most Unity books skip past the language; Harrison slows down, defines concepts, and gives you enough clarity that when you finally enter Unity, you understand why things behave the way they do. Those chapters are dense in the best way: they prep beginners to stand on solid ground and give experienced users a clean, refreshed mental model of the language under the engine.
Ferrone’s real strength is his voice. He strikes a balance I rarely see in technical writing: conversational introductions that explain what you’re about to learn and why it matters, followed by crisp, accessible technical walkthroughs. The pacing (explanation → example → implementation) is excellent. And the inclusion of ready-to-use assets removes one of the biggest barriers for new developers who want to understand systems without getting lost creating placeholder art.
The book doesn’t talk down to anyone. It makes Unity feel more accessible without flattening its complexity. Beginners will come away with genuine competence; advanced users will appreciate the clear framing of new Unity 6 tools and the subtle recognition of how AI-assisted coding is shaping modern workflows. It’s a guide you can read once for understanding, then keep at your desk as a reference.
If you’re a serious hobbyist, a technically inclined beginner, or someone who’s ready to work through your first real project, this is the Unity book I’d hand you first. It bridges concept and execution with clarity and confidence, and it does so with a tone that feels patient, practical, and quietly encouraging. In a space crowded with copy-paste tutorials, Harrison Ferrone has written a Unity 6 guide with real staying power.
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Reviewed in the United States on December 16, 2025
★★★★★ 4
Pretty good beginner book, very user friendly covers Development and Design
Format: Paperback, Format: Paperback
I enjoy learning Game Dev, but I research books because many authors promise a lot and deliver half or not at all and I have to put the book down. This book was pretty good. I appreciate the author explaining things, and remember he's writing a book for beginners. There's also a good amount of pics in the book, and I dislike a book with no pics. Also, he breaks it down very simply and explains that you're not going to learn the entire Unity ecosystem, but rather a beginner-level understanding to get a person started. I enjoyed this book and will definitely go over particular info again. They have a Discord group and a newsletter with tips and it also goes over Game Design. I was surprised to see this, and maybe it's new to me, and I like the analogy of explaining complex terms. A con of the book is that as it progresses, it starts to come off as advanced in scripting, and I turned to AI for additional explanations. Still, the author did explain in advance that it's about to get more advanced, but that's me going deeper into the meaning and explanations. Other than that, it's a good read that you will go to more than once and has practical info to help you on your Unity journey.
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Reviewed in the United States on December 1, 2025