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ROPLUS Extra Large Wheels Carry On Luggage Hard Shell Suitcase Top Opening Hardside Travel Luggage with TSA Lock (Black, 21-Inch)Brand: ROPLUS Color: Black Features: Extra Large Wheels: Our oversized directional wheels redefine durability with their dual carbon steel ball bearing system, delivering ultra smooth rolling motion with absolute stability. The 3X thick rubber tread and rust proof construction withstand long term use while maintaining perfect alignment. These wheels deliver silent, stable performance on any terrain always rolling straight without wobble or resistance
Brand: ROPLUS
Color: Black
Features:
- Extra Large Wheels: Our oversized directional wheels redefine durability with their dual carbon steel ball bearing system, delivering ultra-smooth rolling motion with absolute stability. The 3X-thick rubber tread and rust-proof construction withstand long-term use while maintaining perfect alignment. These wheels deliver silent, stable performance on any terrain - always rolling straight without wobble or resistance
- Front-openning Desgin: experience next-level accessibility with our front-opening suitcase system - a game-changing design that opens/closes with one effortless motion. Unlike traditional luggage with divided compartments that strain when overloaded, our unified loading space allows hassle-free packing while preventing item displacement. The smooth-operating mechanism saves space and eliminates the struggle of forcing shut an overstuffed case. Pack smarter, travel lighter
- TSA Approved Combination Lock: Unlock with one quick click – the ultimate blend of security & convenience. Featuring an 008 military-grade encrypted lock core, this airline-approved system eliminates key hassle while providing superior theft protection. Certified by global aviation security, it ensures smooth customs inspections without damage. Travel smart, travel secure
- Humanization Design: Engineered for ultimate convenience, our luggage features a 3-height adjustable telescopic handle that adapts to your posture. The foldable travel hook lets you hang bags or jackets instantly, freeing your hands. A reinforced front flap handle provides 3x more leverage than side handles for easy lifting, while the anti-tip kickstand keeps your suitcase upright on any surface. Every detail – from the TSA-approved lock to the super large wheels – is designed to cut travel stress by 50%, making your journey smoother and smarter
- Top Material and Quality: Crafted with ultra-durable German polycarbonate, our luggage offers 3x more impact resistance than standard ABS+PC. The scratch-resistant matte texture maintains its flawless look even after years of use. Reinforced with lightweight sturdy frame, it withstands extreme travel conditions while being 20% lighter than regular hardcases
Binding: Luggage
model number: 8008
Part Number: 8008U Black 21-Inch
Package Dimensions: 22.0 x 15.6 x 13.0 inches
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4.6 ★★★★★
Based on 1343 reviews
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Product Reviews
★★★★★ 5
The best on the subject since LDD3
Format: Paperback
I found this book as impacting me as LDD (by Rubini etc) has been in its days, a de-facto standard established to the point that people keep searching for LDD4/LDD5 to these days, that much desirable.
Since LDD3 the last update on 2.6, this book (as well as kernel debugging and hands-on systems programming) is a valuable source of information for modern kernels 5 and 6 for a few years to come.
Knowledgeable and easy to follow, captivating attention to keep on reading it through, impressive for a technical book. LDD4+ has now found reincarnated, thank you very much for all the effort composing it!
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Reviewed in the United States on April 11, 2024
★★★★★ 5
Compelling, informative, and accurate
Format: Kindle
I really could not be happier with the pace and level of detail this book provides. I am a very surface-level Linux user and I wanted to dive in head first. I often find that when I learn about something that I consider really hard or intimidating in tech, I get better at day-to-day use of the tools and my confidence grows. This book is a real confidence-booster if you crave the knowledge of how things work under the hood.
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Reviewed in the United States on October 8, 2024
★★★★★ 5
Great book to read
Format: Paperback, Format: Paperback
Great book to keep you updated about upstream Linux
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Reviewed in the United States on March 18, 2024
★★★★★ 5
A Hands-On and Deep Guide to Linux Kernel Programming
Format: Paperback
Linux Kernel Programming, Second Edition is a very practical and well-structured book for anyone who wants to understand how the Linux kernel works. It focuses on both theory and real hands-on learning. The book uses a clear style and explains complex topics in a simple way. It is designed to help readers build real skills, not just read concepts. It is especially useful for developers who want to work closer to the operating system.
One of the most interesting parts of the book is the strong introduction to kernel programming. It explains how to set up a development environment, build the Linux kernel from source, and write the first kernel module. This section gives readers a solid starting point and builds confidence early in the learning process. It also explains why loadable kernel modules are widely used in real-world projects.
Another highlight is the deep coverage of kernel internals. The book explains core concepts such as kernel architecture, processes, threads, and the difference between user mode and kernel mode. These ideas are often hard to understand, but the book presents them in a clear and structured way. This helps readers see how the operating system really works under the surface.
The memory management section is especially strong and detailed. The book spends several chapters explaining how memory is allocated and managed inside the kernel. It also explains advanced topics such as page allocation, memory reclaim, and the out-of-memory system. These chapters are very useful for understanding performance and stability in real systems.
Another very interesting section is the coverage of CPU scheduling. The book explains how the Linux kernel decides which task runs at a given time. It introduces scheduling policies, priorities, and modern features like control groups. The explanations are practical and supported by examples, which makes the topic easier to follow.
The chapters on kernel synchronization are also a major highlight. They explain concepts such as locks, atomic operations, and deadlock prevention. These topics are critical for writing safe and reliable kernel code. The book also shows real examples and common mistakes, which helps readers avoid problems in their own work.
Another strength of the book is its hands-on approach. It includes many kernel modules, scripts, and examples that readers can try themselves. This makes learning more engaging and helps turn theory into real skills. The focus on practical work makes the book stand out from more theoretical resources.
Overall, this book is a great choice for developers, system programmers, and engineers who want to understand the Linux kernel in depth. It starts with the basics and moves into advanced topics in a smooth way. The combination of clear explanations and practical examples makes it a strong and valuable learning resource.
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Reviewed in the United States on April 16, 2026
★★★★★ 4
Poor quality binding
Format: Paperback, Format: Paperback
Binding glue fell apart in less than a week and the pages fell out. Content is great though and I have a shiny new kernel based on Kali. 4 stars despite the binding because the content is top tier if you love all things Linux 🤌
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Reviewed in the United States on July 4, 2025
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