Description
The QNAP TS-855X-8G is engineered as a robust hybrid storage powerhouse, integrating an Intel Atom C5125 8-core 2.8 GHz processor with versatile high-speed networking. Featuring a unique 6+2 bay configuration—six 3.5-inch bays for high-capacity HDDs and two 2.5-inch bays for SATA SSDs—this NAS delivers a balanced approach to storage density and flash performance. With built-in 10GBASE-T and dual 2.5GbE ports, it eliminates bandwidth constraints for modern business workflows, supporting SMB Multichannel for aggregated speeds up to 5Gbps.
This product is for:
- Creative Professionals: Video editors and photographers requiring high-speed 10GbE connectivity for direct 4K editing and massive project archiving.
- Small to Medium Businesses (SMBs): Organizations needing a scalable file server that supports virtualization and comprehensive backup for PC, Mac, and SaaS data.
- IT Administrators: Professionals seeking a system that supports SR-IOV and ECC memory (up to 128GB) for stable, high-performance virtual machine environments.
- Data-Intensive Home Lab Users: Enthusiasts running multiple Docker containers or virtual machines who require M.2 NVMe slots for tiered storage or caching.
- Security-Conscious Enterprises: Teams needing a reliable disaster recovery solution with snapshot support and multi-cloud backup integration.
Detailed specifications:
- CPU: Intel Atom C5125 8-core/8-thread processor, 2.8 GHz, x86 64-bit architecture with AES-NI encryption.
- Memory: 8 GB non-ECC UDIMM DDR4 (expandable to 128 GB via 4 x U-DIMM slots; supports ECC memory).
- Drive Bays: 6 x 3.5-inch SATA 6Gb/s + 2 x 2.5-inch SATA 6Gb/s; hot-swappable.
- M.2 Slots: 2 x M.2 2280 PCIe Gen 3 x4 slots for NVMe SSDs or QuTS hero system drives.
- Networking: 1 x 10GBASE-T (10G/5G/2.5G/1G/100M) and 2 x 2.5GbE (2.5G/1G/100M/10M) ports.
- Expansion: 2 x PCIe Gen 3 x4 slots for 5/10/25GbE network cards, QM2 cards, or Fibre Channel adapters.
Operating the TS-855X-8G reveals a seamless integration of hardware and software through the QTS or QuTS hero operating systems. The inclusion of dedicated 2.5-inch SSD bays alongside M.2 NVMe slots allows for sophisticated storage tiering, ensuring that frequently accessed data resides on the fastest media. During heavy workloads, the dual 80mm system fans and 90mm CPU fan maintain thermal stability, while the 10GbE interface provides the throughput necessary for lag-free virtualization and rapid large-file transfers.
Compared to standard 4-bay or 6-bay NAS units, the TS-855X-8G offers superior scalability by supporting up to 48 additional drives via TL-R1620Sep-RP or TL-R1220Sep-RP expansion enclosures. While entry-level models often cap at 1GbE or 2.5GbE, the native 10GBASE-T port on this unit provides a significant performance leap for 10Gbps environments without requiring additional PCIe cards. Its support for up to 128GB of RAM also places it well above consumer-grade alternatives that typically max out at 16GB or 32GB.
Q&A:
- Does the TS-855X-8G support ECC memory for data integrity? Yes, while it ships with 8GB of non-ECC memory, the four U-DIMM slots support ECC DDR4 modules to prevent single-bit errors in critical applications.
- Can I use the M.2 slots for storage volumes instead of just caching? Absolutely. The dual M.2 PCIe Gen 3 x4 slots can be configured as SSD cache, a high-speed storage pool, or as the system drive for the QuTS hero OS.
- What is the maximum networking speed achievable with expansion? By utilizing the two PCIe Gen 3 x4 slots, users can install 25GbE network interface cards to meet extreme bandwidth requirements.
- How does SMB Multichannel benefit this NAS? SMB Multichannel allows the dual 2.5GbE ports to aggregate bandwidth, providing up to 5Gbps of throughput to compatible clients without complex switch configurations.
- Is this NAS compatible with virtualization platforms? Yes, it supports VMware, Citrix, Microsoft Hyper-V, and Windows Server 2022, and features SR-IOV for enhanced resource efficiency in virtual environments.
