Shipping included*
Exclusions
Additional shipping fees may apply in rare circumstances for deliveries outside standard service areas. In most cases, this only potentially affects shipments to the Northwest Territories and Yukon, as well as certain heavy or oversized items.
Rocstor C280Q2-01 CommanderX EC31 4TB 3.5" External Hard Drive - USB 3.1 - 7200rpm - 256-bit Encryption - Silver
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This external hard drive features a 4TB SATA hard disk drive spinning at 7200rpm, delivering fast data access suitable for large file transfers and media editing workflows. The USB 3.1 host interface provides theoretical transfer speeds up to 10 Gbps, significantly reducing wait times when moving gigabytes of data.
Hardware-based 256-bit AES encryption protects sensitive information at the drive level without relying on software solutions that can impact system performance. The encryption keys are managed through physical Smart Token keys included in the package, ensuring that only authorized users can access the encrypted data.
Relevant factors for this section include Storage Capacity, Encryption Standard, Spindle Speed (rpm). When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The CommanderX EC31 stands out with its combination of high capacity, hardware encryption, and desktop-optimized design. Unlike basic external drives, it includes three physical Smart Token keys for multi-user encryption management without software dependencies.
Hardware Encryption Security
256-bit AES encryption occurs directly on the drive controller, protecting data even if the drive is removed from its enclosure or connected to another system. This hardware approach maintains full encryption performance without taxing your computer's CPU.
- No software installation required
- Encryption keys stored on physical tokens
- Full disk encryption from first use
Desktop-Optimized Performance
The 3.5-inch form factor and 7200rpm spindle speed provide the performance headroom needed for demanding applications like video editing, database backups, and virtual machine storage. The aluminum casing effectively dissipates heat during extended operation.
- 7200rpm for faster file access
- Aluminum casing for thermal management
- Desktop form factor for stationary use
Deployment / Use Cases
The CommanderX EC31 is ideal for business environments requiring secure, high-capacity external storage. Its hardware encryption makes it suitable for financial records, client data, medical information, and other sensitive materials that require protection beyond basic password security.
Creative professionals will appreciate the 4TB capacity for storing raw video footage, high-resolution photography projects, and audio production files. The USB 3.1 interface ensures quick transfers when working with large media files, while the 7200rpm drive maintains responsive performance during editing sessions.
Business Data Protection
Deploy as encrypted backup for accounting systems, legal documents, or proprietary business data. The physical token system allows multiple authorized users while maintaining audit trails of access.
Media Production Archive
Use as primary storage for video editing projects or secondary archive for completed work. The 4TB capacity accommodates hundreds of hours of high-definition footage with room for project files.
Physical Profile
Measuring 1.65" wide × 0.62" high × 0.62" deep (41.91 × 15.75 × 15.75 mm), the CommanderX EC31 maintains a compact footprint suitable for desktop placement near workstations. The silver aluminum finish provides both aesthetic appeal and functional heat dissipation, while the 1.29 kg weight ensures stability during operation.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 0.62" (15.75 mm), 1.65" (41.91 mm), 0.62" (15.75 mm), 1.29 kg. This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 1.65" (41.91 mm)
- Depth
- 0.62" (15.75 mm)
- Height
- 0.62" (15.75 mm)
- Weight
- 1.29 kg
What's in the Box
The package includes everything needed for immediate deployment of your encrypted external storage solution.
Highlights
- 4TB storage capacity for extensive media libraries and backup archives
- 7200rpm spindle speed delivers responsive performance for large file transfers
- 256-bit hardware encryption protects sensitive data without software overhead
- USB 3.1 interface provides up to 10 Gbps transfer speeds
- 3.5-inch desktop form factor optimized for stationary workstation use
- Includes three physical Smart Token keys for multi-user encryption management
- Silver aluminum enclosure offers durability and effective heat dissipation
- Two-year limited warranty for business deployment confidence
Specifications
| Specifications | |
|---|---|
| Manufacturer | Rocstor |
| Manufacturer Part Number | C280Q2-01 |
| Brand Name | Rocstor |
| Product Line | CommanderX |
| Product Series | EC31 |
| Product Name | Commanderx EC31 Hard Drive |
| Product Type | Hard Drive |
| Technical Information | |
| Storage Capacity | 4 TB |
| Encryption Standard | 256-bit |
| Drive Performance | |
| Spindle Speed (rpm) | 7200 |
| Interfaces/Ports | |
| Host Interface | USB 3.1 |
| Drive Interface | SATA |
| Physical Characteristics | |
| Product Color | Silver |
| Drive Type | External |
| External Drive Type | Desktop |
| Form Factor | 3.5" |
| Height | 0.62" (15.75 mm) |
| Width | 1.65" (41.91 mm) |
| Depth | 0.62" (15.75 mm) |
| Weight (Approximate) | 1.29 kg |
| Miscellaneous | |
| Package Contents | Commanderx EC31 Hard Drive 3 x Smart Token Keys Quick Installation Manual USB Type-C to Type-A Cable |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | 2 Year |
FAQ
What is the actual storage capacity available after formatting?
The 4TB capacity represents the raw storage before formatting. After file system overhead, you can expect approximately 3.63TB of usable space for your files and data. This is standard for hard drives where manufacturers use decimal measurements (1TB = 1,000GB) while operating systems use binary measurements (1TB = 1,024GB).
Does this external hard drive require external power?
Yes, as a 3.5-inch desktop external hard drive, the CommanderX EC31 requires external power through an AC adapter. The drive draws power from both the USB connection and a separate power source to ensure stable operation of the 7200rpm mechanism. This is typical for 3.5-inch external drives which need more power than what USB alone can provide.
How does the hardware encryption work compared to software encryption?
The 256-bit AES encryption occurs directly on the drive's controller chip, encrypting and decrypting data as it's written and read. This hardware approach maintains full drive performance since it doesn't rely on your computer's CPU. Software encryption would slow down transfers as your processor handles the encryption calculations. The hardware encryption is always active and requires one of the physical Smart Token keys to access the data.
What happens if I lose all three Smart Token keys?
If all three physical Smart Token keys are lost, the encrypted data on the drive becomes inaccessible. The hardware encryption is designed this way for security—without a valid token, there's no way to decrypt the data. We recommend keeping at least one token in a secure location separate from the drive itself. The tokens are not programmable or replaceable through software.
Is this drive compatible with both Windows and macOS systems?
Yes, the CommanderX EC31 is compatible with both Windows and macOS computers. The drive comes pre-formatted with a file system that works across platforms, and the USB 3.1 interface is universally supported. The hardware encryption works independently of the operating system, so your encrypted data remains protected regardless of which computer you connect it to.
What is the expected data transfer speed with USB 3.1?
With the USB 3.1 interface and 7200rpm drive mechanism, you can expect sustained transfer speeds between 100-150 MB/s for large sequential files. Real-world performance depends on file size and type—large video files will transfer faster than thousands of small documents. The USB 3.1 interface provides up to 10 Gbps theoretical bandwidth, though the mechanical drive's speed is the limiting factor rather than the USB connection.
| Qty | Price | Available |
|---|
