Installation requirements
Category Item
Environment • Room temperature: 0˚C to 40˚C (32˚F to 104˚F)
• Non-condensing relative humidity: 5% to 95%
• Wet-bulb temperature: 27˚C (80.6˚F)
• Flat, anti-static surface without exposure to direct sunlight, liquids,
or chemicals
Hardware and peripherals • Storage drives
For the list of compatible drive models, go to https://
www.qnap.com/compatibility.
• Network cable
Tools • Phillips #1 or #2 screwdriver
• Anti-static wrist strap
Setting up the NAS
Important
Read all safety requirements and information carefully before setting up the NAS or
installing NAS components.
1. Place your NAS device in an environment that meets the requirements.
For details, see Installation requirements.
2. Install drives.
For details, see the following topics:
• Installing 2.5-inch solid-state drives
• Installing 3.5-inch hard drives
• Installing M.2 solid-state drives
For the list of compatible drive models, go to https://www.qnap.com/compatibility.
3. Optional: Replace or install additional memory modules.
For details, see Replacing memory modules.
4. Optional: Install expansion cards.
For details, see Installing expansion cards.
5. Connect the NAS to the network.
6. Optional: Connect expansion units.
For details, see the following topics:
• Connecting SAS expansion units
• Connecting SATA JBOD Expansion Units
• Connecting USB Expansion Units
TS-855eU User Guide
Product Overview 11