7
Chapter 1: Before You Start
Optional Accessories
With Synology accessories, you can customize your Network Video Recorder to t dierent business
environments without worrying about compatibility and stability. Visit www.synology.com/compatibility for more
information.
•
Memory Module
Model Name Picture Description
D4ECSO-2666-16G
DDR4 ECC unbuffered SO-DIMM
•
Expansion Unit
Model Name Picture Description
DX517
5-bay 2.5"/3.5" SATA expansion
Note: Your Network Video Recorder supports up to two expansion units.
Spare Parts
Visit www.synology.com/products/spare_parts if you need to replace system fans, disk trays, or power supply
units.
Model Name Picture Description
Disk Tray (Type D6)
3.5"/2.5" Drive Tray With Lock
FAN 120*25_5
System Fan 120*120*25 mm
PSU 250W_5
PSU 250W 24p+12p+8p