QNAP TS-855eU - Page 5

Component TS-855eU-8G TS-855eU-RP-8G
Memory slots 2 x DDR4 SODIMM
Important
• Use only QNAP memory modules to maintain system
performance and stability. For NAS devices with more
than one memory slot, use QNAP modules with identical
specications.
• Using unsupported modules may degrade performance,
cause errors, or prevent the operating system from
starting.
Note
This device supports ECC memory modules.
Maximum memory 64 GB RAM: 2 x 32 GB
Flash memory 5 GB (dual-boot OS protection)
Storage
Drive bays 8 x 3.5-inch SATA 6 Gbps
Tip
The drive bays are backward compatible with SATA 3 Gbps
drives.
Drive compatibility • 3.5-inch SATA hard disk drives
• 2.5-inch SATA solid-state drives
M.2 SSD slots 2 x PCIe Gen 3 x4
M.2 SSD form factor 2280
SSD cache acceleration
support
Supported
Hot-swapping The device supports hot-swapping drives except for the following:
M.2 SSDs
Network
2.5 Gigabit network
interface
2 x 2.5 GbE RJ45
Note
The 2.5 Gigabit Ethernet port provides 4 network connection
speeds: 2.5 Gbps, 1 Gbps, 100 Mbps, and 10 Mbps.
Wake-on-LAN Yes (2.5 GbE RJ45)
External I/O Ports & Expansion Slots
PCIe slots 2 x PCIe Gen 3 x4
USB ports 4 x USB 3.2 Gen 1 (5 Gbps) Type-A
Interface
Buttons • Power
• Reset
Dimensions
Form factor 2U Rackmount
TS-855eU User Guide
Product Overview 4