/* ========================================================================== DIYSSD Navigation Menu Styles Scoped with 'diyssd-' prefix to prevent conflicts ========================================================================== */ /* Reset and base styles */ .diyssd-nav-container * { box-sizing: border-box; margin: 0; padding: 0; } /* Main navigation container */ .diyssd-nav-container { width: 100%; background-color: #f4f3f2; position: relative; z-index: 1000; font-family: -apple-system, BlinkMacSystemFont, Inter, Roboto, Ubuntu, sans-serif; } /* Navigation bar */ .diyssd-nav { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 1rem; max-width: 100%; margin: 0 auto; position: relative; } /* ========================================================================== LOGO STYLES ========================================================================== */ .diyssd-logo { flex-shrink: 0; transition: opacity 0.2s ease; } .diyssd-logo:hover { opacity: 0.8; } .diyssd-logo img { height: auto; width: auto; max-height: 40px; max-width: 250px; display: block; padding-right: 8px; } /* ========================================================================== DESKTOP MENU STYLES ========================================================================== */ .diyssd-desktop-menu { display: none; align-items: center; list-style: none; gap: 0; } .diyssd-menu-item { position: relative; margin: 0; } .diyssd-menu-link { display: flex; align-items: center; padding: 0.75rem 1.25rem; text-decoration: none; color: #374151; font-weight: 500; font-size: 0.95rem; transition: all 0.2s ease; border-radius: 4px; white-space: nowrap; } .diyssd-menu-link:hover { background-color: rgba(0, 0, 0, 0.05); color: #1f2937; } /* Dropdown arrow */ .diyssd-menu-link.has-dropdown::after { content: "▼"; font-size: 0.7rem; margin-left: 0.5rem; transition: transform 0.2s ease; color: #6b7280; } .diyssd-menu-item:hover .diyssd-menu-link.has-dropdown::after { transform: rotate(180deg); } /* Menu dividers for desktop */ .diyssd-menu-divider { width: 1px; height: 20px; background-color: rgba(0, 0, 0, 0.4); margin: 0 0.5rem; } /* ========================================================================== DROPDOWN MENU STYLES ========================================================================== */ .diyssd-dropdown { position: absolute; top: 100%; left: 0; background-color: white; border-radius: 8px; box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15); border: 1px solid rgba(0, 0, 0, 0.08); min-width: 200px; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: all 0.2s ease; z-index: 1001; overflow: hidden; } .diyssd-menu-item:hover .diyssd-dropdown { opacity: 1; visibility: visible; transform: translateY(0); } .diyssd-dropdown-link { display: block; padding: 0.75rem 1rem; text-decoration: none; color: #4b5563; font-size: 0.9rem; transition: all 0.15s ease; border-bottom: 1px solid #f3f4f6; } .diyssd-dropdown-link:last-child { border-bottom: none; } .diyssd-dropdown-link:hover { background-color: #f9fafb; background-color: #f2f4f5; color: #1f2937; color: #381f2f; font-weight: 400; } /* ========================================================================== MOBILE TOGGLE BUTTON (INDENTED LINES LIST ICON) ========================================================================== */ .diyssd-mobile-toggle { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 40px; height: 40px; background: none; border: none; cursor: pointer; padding: 0; transition: all 0.2s ease; } .diyssd-mobile-toggle:hover { background-color: rgba(0, 0, 0, 0.05); border-radius: 4px; } /* Indented list lines */ .diyssd-hamburger { position: relative; width: 24px; height: 2px; background-color: #374151; transition: all 0.3s ease; border-radius: 1px; } .diyssd-hamburger::before, .diyssd-hamburger::after { content: ""; position: absolute; height: 2px; background-color: #374151; transition: all 0.3s ease; border-radius: 1px; } /* Top line - full width */ .diyssd-hamburger::before { top: -6px; left: 0; width: 24px; } /* Bottom line - full width */ .diyssd-hamburger::after { bottom: -6px; left: 0; width: 24px; } /* Middle line (the hamburger element itself) - indented */ .diyssd-hamburger { width: 18px; margin-left: 6px; } /* Active state animation - transform to X */ .diyssd-mobile-toggle.active .diyssd-hamburger { background-color: transparent; transform: translateX(-3px); } .diyssd-mobile-toggle.active .diyssd-hamburger::before { top: 0; left: 0; width: 24px; transform: rotate(45deg); } .diyssd-mobile-toggle.active .diyssd-hamburger::after { bottom: 0; left: 0; width: 24px; transform: rotate(-45deg); } /* ========================================================================== MOBILE MENU STYLES ========================================================================== */ .diyssd-mobile-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); opacity: 0; visibility: hidden; transition: all 0.3s ease; z-index: 1001; } .diyssd-mobile-overlay.active { opacity: 1; visibility: visible; } .diyssd-mobile-menu { position: fixed; top: 0; left: 0; height: 100%; background-color: white; transform: translateX(-100%); transition: transform 0.3s ease; z-index: 1002; overflow-y: auto; box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1); } .diyssd-mobile-menu.active { transform: translateX(0); } /* Mobile menu header */ .diyssd-mobile-header { display: flex; justify-content: flex-end; align-items: center; padding: 1rem; border-bottom: 1px solid #e5e7eb; background-color: #f9fafb; } .diyssd-mobile-close { background: none; border: none; font-size: 1.25rem; color: #6b7280; cursor: pointer; padding: 0.5rem; border-radius: 4px; transition: all 0.2s ease; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; } .diyssd-mobile-close:hover { background-color: #e5e7eb; color: #374151; } /* Mobile navigation */ .diyssd-mobile-nav { padding: 1rem; } .diyssd-mobile-section { margin-bottom: 1.5rem; } .diyssd-mobile-heading { font-size: 1.1rem; font-weight: 600; color: #1f2937; margin-bottom: 0.5rem; } .diyssd-mobile-divider { height: 1px; background-color: #e5e7eb; margin-bottom: 0.75rem; } .diyssd-mobile-link { display: block; padding: 0.75rem 1rem; padding: 0.25rem 1rem; text-decoration: none; color: #4b5563; font-size: 0.95rem; margin-bottom: 0.25rem; border-radius: 4px; transition: all 0.2s ease; font-family: -apple-system, BlinkMacSystemFont, Inter, Roboto, Ubuntu, sans-serif; } .diyssd-mobile-link:hover { background-color: #f3f4f6; color: #1f2937; } /* ========================================================================== RESPONSIVE BREAKPOINTS ========================================================================== */ /* Mobile: 640px and below */ @media (max-width: 640px) { .diyssd-nav { padding: 0.5rem 1rem; } .diyssd-logo img { max-height: 32px; max-width: 160px; max-width: 250px; padding-right: 0; } .diyssd-mobile-menu { width: 100%; } .diyssd-mobile-toggle { display: flex; } } /* Mobile Landscape: 641px to 844px */ @media (min-width: 641px) and (max-width: 844px) { .diyssd-mobile-menu { width: 75%; max-width: 450px; } .diyssd-mobile-toggle { display: flex; } } /* Tablet: 845px to 1080px */ @media (min-width: 845px) and (max-width: 1080px) { .diyssd-mobile-menu { width: 75%; max-width: 500px; } .diyssd-mobile-toggle { display: flex; } } /* Desktop: 1081px to 1280px */ @media (min-width: 1081px) and (max-width: 1280px) { .diyssd-desktop-menu { display: flex; } .diyssd-mobile-toggle { display: none; } } /* Large Desktop: 1281px and above */ @media (min-width: 1281px) { .diyssd-desktop-menu { display: flex; } .diyssd-mobile-toggle { display: none; } .diyssd-nav { padding: 0.75rem 2rem; } } /* ========================================================================== ACCESSIBILITY & FOCUS STYLES ========================================================================== */ /* The outline will only be applied when a keyboard is used for navigation. */ body.diyssd-using-keyboard .diyssd-menu-link:focus, body.diyssd-using-keyboard .diyssd-dropdown-link:focus, body.diyssd-using-keyboard .diyssd-mobile-link:focus, body.diyssd-using-keyboard .diyssd-mobile-toggle:focus, body.diyssd-using-keyboard .diyssd-mobile-close:focus { outline: 2px solid #3b82f6; outline-offset: 2px; } /* Prevent body scroll when mobile menu is open */ .diyssd-nav-container.mobile-menu-open { overflow: hidden; } /* High contrast mode support */ @media (prefers-contrast: high) { .diyssd-menu-divider { background-color: #000; } .diyssd-dropdown { border: 2px solid #000; } .diyssd-mobile-divider { background-color: #000; height: 2px; } } /* Reduced motion support */ @media (prefers-reduced-motion: reduce) { .diyssd-nav-container * { transition: none !important; animation: none !important; } }

SanDisk Professional PRO-G40

^{Thunderbolt 3/USB 3.2 Gen 2 Dual Interface | Industrial-Grade Physical Protections | Thermal Velocity Boost Architecture}

Introduction

The SanDisk Professional PRO-G40 SSD represents a paradigm shift in portable storage solutions, combining enterprise-grade performance with industrial durability. Designed for content creators, data engineers, and power users, this Thunderbolt 3/USB-C dual-mode NVMe drive redefines expectations for external storage in professional workflows. Its emergence coincides with growing demand for field-ready storage that maintains desktop-level performance across computing ecosystems.

Product Overview

This ultra-rugged external SSD employs PCIe NVMe technology in a shock-resistant enclosure, targeting users who require:

High-bitrate video editing directly from external media
Rapid transfer of large scientific datasets (50GB+ file batches)
Secure archival of critical data in extreme environments
Available in 1TB-4TB capacities, the drive features an IP68-rated aluminum core with military-grade drop/crush resistance while maintaining compact dimensions (111×58×12mm).

Key Features

Thunderbolt 3/USB 3.2 Gen 2 Dual Interface

The PRO-G40 automatically negotiates between Thunderbolt 3's 40Gbps bandwidth and USB 3.2 Gen 2's 10Gbps protocol, ensuring cross-platform compatibility. This dual-mode architecture allows sustained transfers at 3000MB/s (read) and 2500MB/s (write) under optimal Thunderbolt conditions.

Industrial-Grade Physical Protections

SanDisk's proprietary Impact-Resistant Frame (IRF) technology combines 6061-T6 aluminum alloy with vibration-dampening silicone. Third-party validation confirms survival from:

3-meter concrete drops (MIL-STD-883H Method 2002.5)
4000lb compressive forces (ASTM D642-00)
IP68 submersion (2m/30min in particle-laden water)

Thermal Velocity Boost Architecture

An integrated copper vapor chamber and phase-change thermal interface material maintain the WD Black SN850E controller below 70°C during sustained workloads. This prevents the 15-20% performance throttling common in compact NVMe enclosures.

Performance Analysis

Sequential Transfer Capabilities

Independent testing reveals consistent 2950-3000MB/s reads and 2450-2500MB/s writes when moving 100GB+ video project files via Thunderbolt 3. USB 3.2 Gen 2 mode caps at 1047MB/s read and 997MB/s write due to protocol limitations.

Random Access Performance

The drive's DRAM cache and 96L 3D TLC NAND achieve:

450,000 IOPS (4K random read)
400,000 IOPS (4K random write)
This enables direct execution of 8K RAW video timelines and virtual machine clusters without stuttering.

Thermal Regulation

The PRO-G40's thermal mass and conductive path maintain

Compatibility

Steam Deck and Handheld PCs

Valve's Steam Deck achieves 987MB/s sustained reads via USB-C, enabling direct gameplay from the SSD. Handheld PCs like ASUS ROG Ally benefit from the drive's shock resistance during mobile use.

Raspberry Pi 5

When connected to the Pi 5's USB 3.0 Type-C port, the drive delivers 430MB/s throughput - 83% of the SBC's theoretical maximum. The aluminum casing aids passive cooling in embedded applications.

Desktops and Laptops

Thunderbolt 4 systems achieve full 3000MB/s speeds, while USB4 hosts cap at 2800MB/s due to protocol overhead. The drive's 20Gbps USB 3.2 Gen 2x2 support future-proofs it for emerging host controllers.

Advantages and Limitations

Strengths

Consistent Sustained Throughput: Maintains
Physical Security: Meets TAA compliance requirements for sensitive data transport

Constraints

Cost Premium: 37% higher $/GB than non-rugged Thunderbolt SSDs
Platform Limitations: Lacks iPhone 15 Pro compatibility despite USB-C interface

Conclusion

The SanDisk Professional PRO-G40 establishes new benchmarks for professional portable storage, particularly in field production and scientific research applications. While its price positions it as a specialty tool, the combination of PCIe 4.0-class performance and military-grade durability justifies the investment for mission-critical workflows. Future firmware updates expanding device compatibility could make this the universal standard for high-performance external storage.

Works Cited

"SanDisk Pro-G40 SSD Review: Rugged Thunderbolt on the Go." Tom's Hardware, www.tomshardware.com/reviews/sandisk-pro-g40-ssd-review.

"SanDisk PRO-G40 SSD Review - Photography Life." Photographylife.com, photographylife.com/reviews/sandisk-pro-g40-ssd.

"SanDisk Professional - PRO-G40 SSD 1TB External Thunderbolt 3 and USB-C NVMe Portable SSD - Black." Best Buy, www.bestbuy.com/site/sandisk-professional-pro-g40-ssd-1tb-external-thunderbolt-3-and-usb-c-nvme-portable-ssd-black/6530652.p.

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