StarTech.com S351BMU33ET 3.5" SATA Hard Drive Enclosure - eSATA / USB 3.0 Trayless External HDD Enclosure
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Product Features
Technical Overview
This single-bay enclosure supports SATA/600 drive interfaces and maintains backward compatibility with SATA I and II drives. The UASP (USB Attached SCSI Protocol) support enhances data transfer efficiency when connected via USB 3.0, reducing CPU utilization and improving overall system performance during large file operations.
The enclosure's construction combines plastic, steel, and aluminum components to provide durability while maintaining a lightweight profile. The trayless design eliminates the need for drive trays or mounting hardware, allowing users to insert and remove drives directly for maximum convenience.
Relevant factors for this section include Number of Hard Drives Supported, Number of Total Expansion Bays, Number of 3.5" Bays. 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
This enclosure delivers professional-grade functionality with enterprise-level support. The combination of eSATA and USB 3.0 interfaces provides maximum compatibility across different computing environments, while the trayless design streamlines drive management workflows.
Dual Interface Flexibility
Choose between eSATA for direct storage expansion or USB 3.0 for universal connectivity. Both interfaces support high-speed data transfers up to 5Gbps for efficient backup and file transfer operations.
- eSATA for direct-attached storage
- USB 3.0 for universal compatibility
- 5Gbps transfer speeds
Professional Design Features
Engineered for IT environments with features that enhance reliability and usability. The fanless operation reduces noise and eliminates moving parts that could fail, while the compact form factor optimizes desktop real estate.
- Fanless quiet operation
- Compact footprint
- Included stability stand
Deployment / Use Cases
This enclosure serves multiple roles in professional and small business environments. IT departments can utilize it for drive testing, data recovery, and temporary storage expansion without opening computer cases or installing internal drive bays.
Content creators and multimedia professionals benefit from the high-speed interfaces when working with large video files or extensive media libraries. The enclosure provides a portable storage solution that maintains performance while protecting drives during transport between workstations.
IT Administration & Maintenance
Ideal for drive diagnostics, data migration between systems, and temporary backup solutions. The trayless design enables quick drive swapping for multiple system deployments or recovery scenarios.
Media & Creative Workflows
Supports high-bandwidth file transfers for video editing, photography archives, and audio production. The dual interfaces allow connection to both workstation and laptop systems as project needs evolve.
Physical Profile
The enclosure features a sleek black finish with dimensions optimized for desktop placement. Measuring 5.30" wide by 8.30" deep with a height of just 1.50", the compact design fits comfortably beside monitors or under desks. The included stand provides stable vertical or horizontal orientation options to match workspace configurations.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.50" (38.10 mm), 5.30" (134.62 mm), 8.30" (210.82 mm), 1.15 lb (521.63 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 5.30" (134.62 mm)
- Depth
- 8.30" (210.82 mm)
- Height
- 1.50" (38.10 mm)
- Weight
- 1.15 lb (521.63 g)
What's in the Box
The enclosure ships complete with all necessary components for immediate deployment. Each package includes the essential cables and accessories to connect the enclosure to host systems right out of the box.
Highlights
- Supports 3.5" SATA hard drives with SATA/600 interface compatibility
- Dual host interfaces: eSATA and USB 3.0 Type B with 5Gbps transfer speeds
- Trayless design enables quick drive insertion and removal without tools
- Fanless operation ensures quiet performance with no moving cooling parts
- Compact metal construction with dimensions of 5.30" x 8.30" x 1.50"
- Includes stability stand for vertical or horizontal desktop placement
- UASP support improves USB 3.0 transfer efficiency and reduces CPU load
- Backed by 2-year warranty with manufacturer technical support
- Compliant with REACH, RoHS, and WEEE environmental standards
- Complete package includes all necessary cables and quick-start guide
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | S351BMU33ET |
| Brand Name | StarTech.com |
| Product Name | 3.5" SATA Hard Drive Enclosure - eSATA / USB 3.0 - Trayless |
| Packaged Quantity | 1 Each |
| Product Type | Drive Enclosure |
| Technical Information | |
| Number of Hard Drives Supported | 1 |
| I/O Expansions | |
| Number of Total Expansion Bays | 1 |
| Number of 3.5" Bays | 1 |
| Network & Communication | |
| Wireless LAN | No |
| UASP Support | Yes |
| Interfaces/Ports | |
| Drive Interface | SATA/600 |
| Host Interface | eSATA,USB 3.0 Type B |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Product Material | Plastic,Steel,Aluminum |
| Cooling Fan | No |
| Form Factor | External |
| Height | 1.50" (38.10 mm) |
| Width | 5.30" (134.62 mm) |
| Depth | 8.30" (210.82 mm) |
| Weight (Approximate) | 1.15 lb (521.63 g) |
| Miscellaneous | |
| Package Contents | 3.5" SATA Hard Drive Enclosure - eSATA / USB 3.0 - Trayless 1 x Enclosure Stand 1 x USB 3.0 Cable 1 x eSATA Cable 1 x NA Power Cable 1 x Quick-start Guide |
| Country of Origin | China |
| Environmentally Friendly | Yes |
| Environmental Compliance | Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Restriction of Hazardous Substances (RoHS),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What types of hard drives are compatible with this enclosure?
This enclosure supports standard 3.5" SATA hard drives with SATA/600 interfaces. It maintains backward compatibility with SATA I and SATA II drives, providing flexibility for both newer high-speed drives and older storage devices. The trayless design accommodates drives without requiring additional mounting hardware or drive trays.
What connection options does this drive enclosure provide?
The enclosure offers dual connectivity through both eSATA and USB 3.0 Type B ports. The eSATA interface provides direct-attached storage capabilities for systems with eSATA ports, while the USB 3.0 interface delivers universal compatibility with most modern computers. Both interfaces support data transfer speeds up to 5Gbps for efficient file operations.
Does this enclosure require external power?
Yes, the enclosure includes an external power adapter to provide sufficient power for 3.5" hard drives. The included NA power cable connects to the enclosure's power port, ensuring stable operation even with high-performance drives that require more power than USB alone can provide. This power design supports reliable performance across different drive models and capacities.
What is UASP support and how does it benefit performance?
UASP (USB Attached SCSI Protocol) is an advanced protocol that improves USB 3.0 transfer efficiency. When connected to a host system that supports UASP, this enclosure can reduce CPU utilization during data transfers by up to 80% compared to standard USB protocols. This results in faster file operations and improved system responsiveness during large data transfers.
How does the trayless design work with hard drives?
The trayless design eliminates the need for separate drive trays or mounting brackets. Users simply insert a bare 3.5" SATA hard drive directly into the enclosure, where it connects securely to the internal SATA interface. This design streamlines drive swapping for IT professionals who need to test multiple drives or access data from different storage devices quickly and efficiently.
What warranty and support does StarTech.com provide for this product?
StarTech.com backs this enclosure with a 2-year limited warranty covering manufacturing defects. The product also includes free lifetime technical support available 24/5 through multiple channels. This professional support structure ensures IT departments and power users have access to assistance for installation, troubleshooting, and integration questions throughout the product's lifecycle.
| Qty | Price | Available |
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