


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 2027) , ideal for businesses requiring matching NAS models deployed for long-term projects.
CPU
Intel ® Atom® C5125 8-core processor, 2.8GHz
CPU Architecture
64-bit x86
Floating Point Unit
✓
Encryption Engine
✓
System Memory
8 GB SODIMM DDR4 (1 x 8 GB)
Maximum Memory
64 GB ( 2 x 32 GB)
Memory Slot
2 x SODIMM DDR4
Support ECC memory
Flash Memory
5GB (Dual boot OS protection)
Drive Bay
8 x 3.5-inch SATA 6Gb/s, 3Gb/s
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
✓
M.2 Slot
2 x M.2 2280 (PCIe Gen 3 x 4)
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 PCIe expansion card
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)
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)
8.15 kg
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 2027) , ideal for businesses requiring matching NAS models deployed for long-term projects.
CPU
Intel ® Atom® C5125 8-core processor, 2.8GHz
CPU Architecture
64-bit x86
Floating Point Unit
✓
Encryption Engine
✓
System Memory
8 GB SODIMM DDR4 (1 x 8 GB)
Maximum Memory
64 GB ( 2 x 32 GB)
Memory Slot
2 x SODIMM DDR4
Support ECC memory
Flash Memory
5GB (Dual boot OS protection)
Drive Bay
8 x 3.5-inch SATA 6Gb/s, 3Gb/s
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
✓
M.2 Slot
2 x M.2 2280 (PCIe Gen 3 x 4)
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 PCIe expansion card
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)
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)
8.15 kg