Lekuo DTB3S61: USB4 40Gbps 5-Bay Hybrid Storage Enclosure

High-speed + High-capacity All-in-One Storage Expansion Solution

USB4 40Gbps dual-interface 5-bay hybrid storage enclosure, redefining external storage performance.

Traditional multi-bay enclosures are typically limited by a single USB interface and pure SATA architecture—either lacking speed or capacity. On the other hand, high-speed single-bay enclosures cannot meet the needs of multi-drive backup and expansion.

The Lekuo DTB3S61 is built on a USB4 40Gbps controller platform with dual 40Gbps Type-C ports and a hybrid drive-bay architecture. It addresses three core challenges at the hardware level: performance, capacity, and scalability.

1. 40Gbps High-Bandwidth Architecture

Powered by a USB4 40Gbps controller, fully compatible with Thunderbolt 3 / 4 / 5 and USB4 hosts. It provides a full-speed channel for NVMe SSDs, unlocking the true performance ceiling of external storage.

2. Dual Type-C Smart Role Design

One upstream port connects to the host, while one downstream port is designed for high-speed peripheral expansion (such as network adapters or docking devices). All devices share a total 40Gbps bandwidth, while significantly simplifying desktop cable management.

3. 1+4 Hybrid Drive Bay Design

1× M.2 NVMe (PCIe 3.0 x4) + 4× SATA 3.0 bays (supports 2.5"/3.5" HDD/SSD)

High Performance, Stability, and Compatibility

1. Intelligent Bandwidth Allocation for Speed + Capacity Balance

• NVMe channel: Dedicated PCIe 3.0 x4 + full USB4 40Gbps bandwidth for maximum SSD performance
• SATA channels: Stable multi-drive parallel operation without speed degradation
• Total capacity: up to 128TB; supports up to 20TB+ per HDD and 8TB NVMe SSD, enabling massive data storage

2. Dual 40Gbps Type-C Expansion Capability

• Upstream port: USB4 ×1 (40Gbps, supports PD power delivery)
• Downstream port: High-speed expansion interface ×1 for additional peripherals

3. Intelligent Thermal Management for 24/7 Stability

• Full aluminum alloy chassis with passive cooling
• Intelligent temperature-controlled silent fan for active cooling
• Adaptive fan speed: Low load: silent operation High load: enhanced cooling performance
• Effectively prevents thermal throttling and drive dropouts

4. User-Friendly, Plug-and-Play Design

• Supports 2.5"/3.5" SATA HDD/SSD and M.2 NVMe SSD with tool-free installation
• Compatible with Windows 10/11, macOS, and Linux (kernel 5.4+)
• LED indicators for real-time read/write and system status monitoring

High-Performance Storage Solution for Multiple Use Cases

1. Video Editing / 3D Rendering / Audio Production

Modern creative workflows require both speed and capacity for 4K/8K assets:

• NVMe SSD for active projects and cache
• SATA drives for raw footage and archival storage
• 40Gbps bandwidth enables fast loading of large media files, smoother multi-track editing, and improved rendering efficiency

2. Local AI Training and Inference

AI workloads require high-frequency access to large datasets:

• NVMe for training datasets and model weights
• SATA for backup and cold data storage
• Reduced latency improves training and inference performance for local AI development

3. Small Studios / Creative Teams Storage Hub

A centralized high-speed storage solution for multi-user collaboration:

• Unified storage for media, backups, and active projects
• Cross-platform compatibility (macOS & Windows)
• Supports simultaneous multi-device access for improved workflow efficiency

4. Mini PCs / Laptops High-Speed Expansion

Ideal for systems with limited internal storage and expansion slots:

• Expand up to 5 drives in a single unit
• Combines high-speed performance with large capacity
• Suitable for mobile workstations, field production, and on-site editing

Performance Comparison: DTB3S61 vs Traditional Multi-Bay Enclosures

Summary

The Lekuo DTB3S61 USB4 40Gbps 5-bay hybrid storage enclosure delivers high-speed performance, large-capacity storage, and flexible expandability in a single device.

It addresses the long-standing trade-off between speed and capacity in external storage, while improving thermal stability and system flexibility through intelligent design and dual-port architecture.

Designed for video production, AI workloads, data backup, studio environments, and mobile workstations, it represents a next-generation high-performance external storage solution for professional users.