QNAP TS-855eU 8-Bay Rackmount NAS Enclosure

Overview

The QNAP TS-855EU-8G-US is an 8-bay rackmount NAS enclosure designed to deliver flexible and high-performance storage in a compact 2U short-depth form factor. It supports both 2.5-inch and 3.5-inch SATA drives, along with M.2 NVMe SSD slots for caching, which enhances data access speeds. Powered by an 8-core Intel Atom processor and equipped with 8GB of RAM, this NAS handles demanding workloads such as file sharing and virtualization with ease, making it a strong choice for small to medium-sized businesses and IT professionals.

Key features

• 2U short-depth rackmount design that fits into small racks and network cabinets, saving valuable space.
• Support for up to eight SATA drives, allowing flexible storage configurations with both 2.5-inch and 3.5-inch drives.
• Dual 2.5GbE network ports provide fast and reliable data transfer speeds essential for handling large files and backups.
• M.2 NVMe SSD slots enable caching to significantly improve system responsiveness and reduce latency.
• Runs on QNAP’s QuTS hero operating system, offering advanced data management, protection, and easy maintenance.
• Two PCIe slots allow future expansion options such as additional network cards or storage controllers.
• Four USB 3.2 ports support a variety of external devices, enhancing connectivity and peripheral integration.
• Supports multiple RAID configurations including 0, 1, 5, 6, 10, 50, and 60, providing options to balance speed and data redundancy.
• Expandable memory up to 64GB RAM to accommodate growing performance demands.

Key specs

• Processor: 8-core Intel Atom
• Memory: 8GB RAM (expandable up to 64GB)
• Drive bays: 8 (supports 2.5-inch and 3.5-inch SATA drives)
• M.2 slots: NVMe SSD slots for caching
• Network: Dual 2.5GbE ports
• Expansion: 2 PCIe slots
• USB ports: 4 x USB 3.2
• Form factor: 2U short-depth rackmount
• RAID support: 0, 1, 5, 6, 10, 50, 60

Connectivity and compatibility

This NAS offers versatile connectivity options to integrate smoothly into existing network environments. The dual 2.5GbE ports ensure faster network throughput compared to standard Gigabit Ethernet, which benefits teams working with large data sets or frequent backups. The four USB 3.2 ports allow connection of external storage, printers, or other peripherals, expanding the device’s functionality. Two PCIe slots provide room for future upgrades such as 10GbE network cards or additional storage controllers, making it adaptable to evolving business needs.

Performance and reliability

Equipped with an 8-core Intel Atom processor and 8GB of RAM, the TS-855EU-8G-US delivers smooth multitasking and efficient handling of demanding applications like virtualization and file sharing. The inclusion of M.2 NVMe SSD caching reduces latency and accelerates data access, improving overall system responsiveness. Multiple RAID options allow users to tailor the balance between performance and data protection, ensuring critical information remains safe without sacrificing speed. The QuTS hero operating system adds enterprise-grade data management and protection features, enhancing reliability and ease of use.

Ideal uses and environments

This NAS enclosure fits well in small to medium-sized business environments, IT departments, and professional setups that require a compact yet powerful storage solution. Its short-depth design is perfect for racks or cabinets with limited space, while the flexible drive support and expansion options make it suitable for growing storage needs. It works well for teams that handle large files, run virtual machines, or need reliable backup and data protection. The device’s performance and connectivity features also make it a strong choice for remote offices or branch locations requiring efficient network storage.