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Description
Overview
Designed for flexible IT deployment and comprehensive virtualization applications, the short-depth TS-855eU-RP 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-RP packs excellent performance and computing benefits to empower fast data access, backup/restoration, file server, and virtualization applications, while including redundant power supplies to ensure maximum system uptime. Running the QTS operating system as standard, the TS-855eU-RP can be switched to use the ZFS-based QuTS hero operating system based on your requirements. The TS-855eU-RP will be available and supported by QNAP for an extended period (up to 2030) , ideal for businesses requiring matching NAS models deployed for long-term projects.
Compact, space saving
The TS-855eU-RP 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-RP 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 or SSD storage pool for the system drive of QuTS hero.
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-RP 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-RP 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-RP 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 and redundant power supplies are included to ensure 24/7 system stability. Combining high performance, reliability, and capacity, the TS-855eU-RP is an all-round budget-friendly storage solution for diverse applications, such as file servers, high-speed storage/backup/recovery, and virtualization.
Affordable 2.5GbE meets high-bandwidth demands
With two 2.5GbE RJ45 LAN ports (backwards compatible with 1G/100M), the TS-855eU-RP allows businesses to easily upgrade network speeds from 1 Gigabit to 2.5 Gigabit using existing CAT5e cables. Port Trunking and failover also reinforce applications demanding higher bandwidth and reliability, including virtualization, large file transfers, high-speed backup/restoration, and real-time applications. QNAP also offers numerous managed/unmanaged 2.5GbE/10GbE switches, assisting organizations in implementing high-speed, secure, and scalable network environments without going over budget.
M.2 PCIe slots for SSD caching and accelerated AI-powered image recognition
The TS-855eU-RP comes with two M.2 PCIe Gen 3 slots that allow for installing M.2 2280 NVMe SSDs or Edge TPU (sold separately) to boost NAS performance.
SSD caching
Configure SSD caching with M.2 SSDs and obtain optimal I/O and reduced latency without occupying any 3.5-inch drive bays.
Set as the system drive for QuTS hero
Creating an SSD RAID with two SSDs as the system drive boosts metadata management and database efficiency, optimizing overall performance while preserving storage space.
Faster image recognition with Edge TPU
Coral M.2 Accelerator with Edge TPU provides an affordable solution to leverage AI acceleration for faster image recognition in your NAS applications.
Abundant I/O capabilities with PCIe expansion
The TS-855eU-RP has two PCIe Gen 3 x4 slots that allow for installing various expansion cards for expanding application potential.
Designed for flexible IT deployment and comprehensive virtualization applications, the short-depth TS-855eU-RP 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-RP packs excellent performance and computing benefits to empower fast data access, backup/restoration, file server, and virtualization applications, while including redundant power supplies to ensure maximum system uptime. Running the QTS operating system as standard, the TS-855eU-RP can be switched to use the ZFS-based QuTS hero operating system based on your requirements. The TS-855eU-RP will be available and supported by QNAP for an extended period (up to 2030) , ideal for businesses requiring matching NAS models deployed for long-term projects.
Compact, space saving
The TS-855eU-RP 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-RP 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 or SSD storage pool for the system drive of QuTS hero.
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-RP 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-RP 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-RP 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 and redundant power supplies are included to ensure 24/7 system stability. Combining high performance, reliability, and capacity, the TS-855eU-RP is an all-round budget-friendly storage solution for diverse applications, such as file servers, high-speed storage/backup/recovery, and virtualization.
Affordable 2.5GbE meets high-bandwidth demands
With two 2.5GbE RJ45 LAN ports (backwards compatible with 1G/100M), the TS-855eU-RP allows businesses to easily upgrade network speeds from 1 Gigabit to 2.5 Gigabit using existing CAT5e cables. Port Trunking and failover also reinforce applications demanding higher bandwidth and reliability, including virtualization, large file transfers, high-speed backup/restoration, and real-time applications. QNAP also offers numerous managed/unmanaged 2.5GbE/10GbE switches, assisting organizations in implementing high-speed, secure, and scalable network environments without going over budget.
M.2 PCIe slots for SSD caching and accelerated AI-powered image recognition
The TS-855eU-RP comes with two M.2 PCIe Gen 3 slots that allow for installing M.2 2280 NVMe SSDs or Edge TPU (sold separately) to boost NAS performance.
SSD caching
Configure SSD caching with M.2 SSDs and obtain optimal I/O and reduced latency without occupying any 3.5-inch drive bays.
Set as the system drive for QuTS hero
Creating an SSD RAID with two SSDs as the system drive boosts metadata management and database efficiency, optimizing overall performance while preserving storage space.
Faster image recognition with Edge TPU
Coral M.2 Accelerator with Edge TPU provides an affordable solution to leverage AI acceleration for faster image recognition in your NAS applications.
Abundant I/O capabilities with PCIe expansion
The TS-855eU-RP has two PCIe Gen 3 x4 slots that allow for installing various expansion cards for expanding application potential.
| QNAP TS-855eU-RP-8G Specifications | |
|---|---|
| CPU | Intel ® Atom® C5125 8-core processor, 2.8GHz |
| CPU Architecture | 64-bit x86 |
| Floating Point Unit | ✓ |
| Encryption Engine | ✓(AES-NI) |
| System Memory | 8 GB non-ECC SODIMM DDR4 (1 x 8 GB) |
| Maximum Memory | 64 GB ( 2 x 32 GB) |
| Memory Slot | 2 x SODIMM DDR4 Support ECC memory For dual-DIMM configuration, you must use a pair of identical DDR4 modules.
|
| Flash Memory | 5GB (Dual boot OS protection) |
| Drive Bay | 8 x 3.5-inch SATA 6Gb/s, 3Gb/s
The system is shipped without HDD.
For the HDD compatibility list, please visit https://www.qnap.com/compatibility/ |
| Drive Compatibility | 3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives |
| Hot-swappable | ✓(Not supported M.2 SSD) |
| M.2 Slot | 2 x M.2 2280 (PCIe Gen 3 x 4)
Compatible with NVMe SSD PCIe Gen 3 and above. Please refer to https://www.qnap.com/compatibility/ for compatibility.
|
| SSD Cache Acceleration Support | ✓ |
| SR-IOV | ✓ |
| 2.5 Gigabit Ethernet Port (2.5G/1G/100M) | 2 (2.5G/1G/100M/10M) |
| 5 Gigabit Ethernet Port (5G/2.5G/1G/100M) | Optional via a network adapter |
| 10 Gigabit Ethernet Port | Optional via a network adapter |
| 25 Gigabit Ethernet Port | Optional via a network adapter |
| Wake on LAN (WOL) |
✓Only the 2.5GbE port
|
| Jumbo Frame | ✓ |
| PCIe Slot | 2 x PCIe Gen3 (x4) Slot 1: PCIe Gen 3 (x4) Slot 2: PCIe Gen 3 (x4) Card dimensions for PCIe slot 1:97 x 68.9x 18.76 mm / 3.82 x 2.71 x 0.74 inches.
Card dimensions for PCIe slot 2:210 x 68.9 x 18.76 mm / 8.27 x 2.71 x 0.74 inches. |
| USB 3.2 Gen 1 port | 4 |
| HDMI™ Output | Optional via a PCIe graphics card |
| Form Factor | 2U Short Depth Rackmount |
| LED Indicators | HDD 1-8, Status, LAN, USB, Power |
| Buttons | Power, Reset |
| Dimensions (HxWxD) | 88.6 × 432 × 297.4 mm |
| Weight (Net) | 9.47 kg |
| Weight (Gross) | 10.94 kg |
| Operating Temperature | 0 - 40 °C (32°F - 104°F) |
| Storage Temperature | -20 - 70°C (-4°F - 158°F) |
| Relative Humidity | 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F) |
| Power Supply Unit | Minimum 300W (x2) PSU, 100-240VAC |
| Power Consumption: Disk Standby Mode | 54.331 W |
| Power Consumption: Operating Mode, Typical | 78.73 W
Tested fully populated with WD10EFRX hard drives.
|
| Fan | 3 x 60mm, 12VDC |
| System Warning | Buzzer |
| Standard Warranty | 3 |
| Max. Number of Concurrent Connections (CIFS) - with Max. Memory | |





