Seagate STLC18000400

Overview

The Seagate STLC18000400 is an 18TB external hard drive designed to provide reliable desktop storage with ample space for large files, backups, and media libraries. It features a 3.5-inch mechanical disk that connects via USB 3.0, delivering data transfer speeds up to 5Gbps. This drive is well suited for users who need to expand their storage capacity or organize extensive data collections on Windows or macOS computers.

What makes this drive stand out is its built-in hub with front-facing USB-C and USB 3.0 ports, allowing you to connect or charge other devices directly from the drive, even when your computer is off. Security is enhanced with AES-256 hardware encryption and password protection, keeping your data safe from unauthorized access.

Included Seagate Toolkit software simplifies scheduling backups and mirroring files, helping you maintain current copies of important data without extra effort. The package also includes a power adapter and Seagate’s Rescue Data Recovery service, providing additional protection against accidental data loss. This drive fits well in home offices, creative studios, or any environment requiring dependable, high-capacity storage.

Key features

• Built-in front-facing USB-C and USB 3.0 ports enable convenient device connection and charging without needing the computer to be on
• AES-256 hardware encryption with password protection safeguards your data against unauthorized access
• Seagate Toolkit software allows easy scheduling of backups and file mirroring to keep your data up to date
• Includes Seagate Rescue Data Recovery service for peace of mind in case of accidental data loss
• Powered by an included AC adapter to ensure consistent and reliable performance
• Compatible with both Windows and macOS systems, making it versatile for different users

Key specs

• Storage capacity: 18 TB
• Drive type: 3.5-inch mechanical hard drive
• Interface: USB 3.0 with transfer speeds up to 5 Gbps
• Front ports: USB-C and USB 3.0 for device connection and charging
• Encryption: AES-256 hardware encryption with password protection
• Power: AC adapter included for stable power delivery
• Compatibility: Windows and macOS

Connectivity and compatibility

This external hard drive offers versatile connectivity options that enhance your desktop setup. The USB 3.0 interface ensures fast data transfers, while the front-facing USB-C and USB 3.0 ports provide easy access for connecting peripherals or charging devices without needing to reach behind your computer. Its compatibility with both Windows and macOS systems makes it a flexible choice for a wide range of users.

• USB 3.0 interface for high-speed data transfer
• Front USB-C port for modern device connections
• Front USB 3.0 port for additional device connectivity and charging
• Works seamlessly with Windows and macOS operating systems

Ideal uses and environments

This 18TB external hard drive is a strong choice for users who require large and secure storage for extensive data collections, such as media libraries, backups, or project files. It fits naturally in home offices, creative studios, and professional environments where reliable desktop storage is essential. The built-in hub and security features make it especially useful for users who want to streamline their workspace while protecting sensitive information.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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