QNAP TS-855eU-8GSAN/NAS Storage System
TS-855eU | 2U short-depth rackmount NAS with 8-core computing power for optimized virtualization
Designed for flexible IT deployment and comprehensive virtualization applications, the short-depth TS-855eU 2.5GbE NAS can easily fit in a compact rack in offices or audiovisual rooms. Powered by an Intel® 8-core processor, the TS-855eU packs excellent performance and computing benefits to empower fast data access, backup/restoration, file server, and virtualization applications. Running the QTS operating system as standard, the TS-855eU can be switched to use the ZFS-based QuTS hero operating system based on your requirements. The TS-855eU will be available and supported by QNAP for an extended period (up to 2027) , ideal for businesses requiring matching NAS models deployed for long-term projects.
Compact, space saving
- The TS-855eU has a depth of only 11.7 inches (297.4 mm) and is perfectly suited for installation in a compact rack, or places with a lot of cabling.
Flexible storage expansion
- Connect TL-R1620Sep-RP / TL-R1220Sep-RP JBOD units to the TS-855eU for adding up to 48 additional drive capacity to match your business growth.
Dual 2.5GbE connectivity
- Features two 2.5GbE ports (backwards compatible with 1G/100M). Supports port trunking for enhanced performance and fault tolerance.
PCIe expandability
- Features two PCIe Gen 3 slots for installing 5/10/25GbE network cards, QM2 cards or Fibre Channel cards.
Optimized SSD performance
- Dual M.2 PCIe NVMe slots enable SSD caching, SSD storage pools, or Qtier™ auto-tiered storage.
Virtual machines and containers
- Centralize your virtualization storage, and host multiple virtual machines and containerized apps.
2U short-depth design for up to 38% reduction in size
The rackmount TS-855eU has a short depth design of only 11.7 inches (297.4 mm), making it an excellent choice for smaller racks, wall-mount AV rack cabinets, and network rack cabinets. The space saved by the short depth design can be reserved for cabling or ventilation. The TS-855eU is space-saving for flexible deployment and is especially suitable for compact offices, audiovisual rooms, and security surveillance recording.
Ultimate 8-core performance with up to 64 GB RAM and Intel® QuickAssist Technology
Designed for heavy business workloads, the TS-855eU delivers exceptional 8-core performance for running multiple concurrent tasks. AES-NI encryption and Intel® QuickAssist Technology (QAT) is supported to offload computationally-intensive compression and improving IPsec/SSL cryptography performance. Up to 64 GB ECC RAM is supported. Combining high performance, reliability, and capacity, the TS-855eU is an all-round budget-friendly storage solution for diverse applications, such as file servers, high-speed storage/backup/recovery, and virtualization.
- SAN/NAS Storage System offers maximum storage efficiency and convenience
- Holds up to 8 HDDs to let you expand limitlessly
- Through RAID levels (0, 1, 5, 6, 10, 50, 60, jbod), RAID provides data reliability, fault tolerance and improves overall performance
- DDR4 SDRAM memory technology for fast, easy, and convenient access and retrieval of data and information
- Enjoy quick web browsing and efficiently deal with your crazy work weeks or playtime marathons with the Intel Atom 2.80 ghz processor that kicks execution into high gear
- RAID technology - data reliability, fault tolerance and improved overall performance
- Rack-mountable san/nas storage system allows easy and convenient usage without any trouble
- 2.5 Gigabit Ethernet Ethernet technology for a reliable, convenient way of communication and connectivity
- It's qts 5.0.1 operating system offers powerful platform to efficiently run routine applications
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TS-855eU | 2U short-depth rackmount NAS with 8-core computing power for optimized virtualization
Designed for flexible IT deployment and comprehensive virtualization applications, the short-depth TS-855eU 2.5GbE NAS can easily fit in a compact rack in offices or audiovisual rooms. Powered by an Intel® 8-core processor, the TS-855eU packs excellent performance and computing benefits to empower fast data access, backup/restoration, file server, and virtualization applications. Running the QTS operating system as standard, the TS-855eU can be switched to use the ZFS-based QuTS hero operating system based on your requirements. The TS-855eU will be available and supported by QNAP for an extended period (up to 2027) , ideal for businesses requiring matching NAS models deployed for long-term projects.
Compact, space saving
- The TS-855eU has a depth of only 11.7 inches (297.4 mm) and is perfectly suited for installation in a compact rack, or places with a lot of cabling.
Flexible storage expansion
- Connect TL-R1620Sep-RP / TL-R1220Sep-RP JBOD units to the TS-855eU for adding up to 48 additional drive capacity to match your business growth.
Dual 2.5GbE connectivity
- Features two 2.5GbE ports (backwards compatible with 1G/100M). Supports port trunking for enhanced performance and fault tolerance.
PCIe expandability
- Features two PCIe Gen 3 slots for installing 5/10/25GbE network cards, QM2 cards or Fibre Channel cards.
Optimized SSD performance
- Dual M.2 PCIe NVMe slots enable SSD caching, SSD storage pools, or Qtier™ auto-tiered storage.
Virtual machines and containers
- Centralize your virtualization storage, and host multiple virtual machines and containerized apps.
2U short-depth design for up to 38% reduction in size
The rackmount TS-855eU has a short depth design of only 11.7 inches (297.4 mm), making it an excellent choice for smaller racks, wall-mount AV rack cabinets, and network rack cabinets. The space saved by the short depth design can be reserved for cabling or ventilation. The TS-855eU is space-saving for flexible deployment and is especially suitable for compact offices, audiovisual rooms, and security surveillance recording.
Ultimate 8-core performance with up to 64 GB RAM and Intel® QuickAssist Technology
Designed for heavy business workloads, the TS-855eU delivers exceptional 8-core performance for running multiple concurrent tasks. AES-NI encryption and Intel® QuickAssist Technology (QAT) is supported to offload computationally-intensive compression and improving IPsec/SSL cryptography performance. Up to 64 GB ECC RAM is supported. Combining high performance, reliability, and capacity, the TS-855eU is an all-round budget-friendly storage solution for diverse applications, such as file servers, high-speed storage/backup/recovery, and virtualization.
- SAN/NAS Storage System offers maximum storage efficiency and convenience
- Holds up to 8 HDDs to let you expand limitlessly
- Through RAID levels (0, 1, 5, 6, 10, 50, 60, jbod), RAID provides data reliability, fault tolerance and improves overall performance
- DDR4 SDRAM memory technology for fast, easy, and convenient access and retrieval of data and information
- Enjoy quick web browsing and efficiently deal with your crazy work weeks or playtime marathons with the Intel Atom 2.80 ghz processor that kicks execution into high gear
- RAID technology - data reliability, fault tolerance and improved overall performance
- Rack-mountable san/nas storage system allows easy and convenient usage without any trouble
- 2.5 Gigabit Ethernet Ethernet technology for a reliable, convenient way of communication and connectivity
- It's qts 5.0.1 operating system offers powerful platform to efficiently run routine applications
The TS-855eU is backed by a 3-year warranty at no additional cost.
- TS-855eU-8GSAN/NAS Storage System
- 1 x Ethernet Cable
- 1 x Power Cord
- 32 x Flat head Screws (for 3.5" HDD)
- 24 x Flat head Screws (for 2.5" HDD)
- Quick Installation Guide (QIG)

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