User's Manual

7
Chapter 1: Before You Start
Optional Accessories
With Synology accessories, you can customize your Synology NAS to t di󰀨erent business environments without
worrying about compatibility and stability. Visit
www.synology.com/compatibility
for more information.
Memory Module
Model Name Picture Description
D4ES01-4G
4GB DDR4 ECC Unbu󰀨ered
SODIMM
D4ES01-8G
8GB DDR4 ECC Unbu󰀨ered
SODIMM
D4ECSO-2666-16G
16GB DDR4 ECC Unbu󰀨ered
SODIMM
PCIe Add-in Card
Model Name Picture Description
E10G17-F2
Dual-port, 10GbE SFP+
network interface card
E10G18-T1
Single-port, 10GbE RJ-45
network interface card
E10G18-T2
Dual-port, 10GbE RJ-45
network interface card
Expansion Unit
Model Name Picture Description
DX517
5-bay
2.5"/3.5" SATA expansion
Note:
Your Synology NAS supports up to two expansion units.