1. Product Overview
This chapter provides basic information about the QNAP device.
About the TS-855eU
The TS-855eU is powered by a high-performance Intel ® Atom® C5125 8-core processor, and features two
DDR4 SODIMM slots which can be scaled up to 64 GB of memory. The NAS supports connecting expansion
units through four native USB 3.2 Gen 1 Type-A ports. Additionally, the TS-855eU supports SATA 6 Gbps
drives (backward compatible with SATA 3 Gbps), and is equipped with two 2.5 Gigabit Ethernet ports and two
PCIe 3.0 x4 slots for various applications and expansion options.
Hardware specifications
Warning
• If your QNAP product has hardware defects, return the product to QNAP or a QNAP-
authorized service center for maintenance or replacement. Any attempt to repair or
perform maintenance procedures on the product by you or an unauthorized third
party invalidates the warranty.
• QNAP is not responsible for any damage or data loss caused by unauthorized
modifications and installation of unsupported third-party applications.
• For details, see the
QNAP Warranty Terms and Conditions
Tip
Model specifications are subject to change without prior notice. To see the latest
specifications, go to
Ordering P/N
Drive bays
Memory
Power supply
TS-855eU-8G
8
8 GB
Single
TS-855eU-RP-8G
8
8 GB
Redundant
Component
TS-855eU-8G
TS-855eU-RP-8G
Processor
CPU
Intel® Atom® C5125
Frequency
8-core/8-thread 2.8 GHz
Architecture
x86 64-bit
Encryption engine
AES-NI
Memory
Pre-installed memory
8 GB RAM: 1 x 8 GB DDR4 SODIMM
TS-855eU User Guide
Product Overview
3
