Does the package include all necessary cables and accessories needed for installation, or are there additional purchases required?

The package includes an AC Power Cord X 2 and a Quick Installation Guide X 4, which suggests that necessary cables and accessories for installation are provided.

Questions & Answers: Synology RS3621RPxs 12-Bay NAS with 32GB RAM and 192TB (12 x 16TB) of Synology Enterprise Drives and 1.6TB (2 x 800GB) Cache Fully Assembled and Tested By CustomTechSales

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Synology RS3621RPxs 12-Bay NAS with 32GB RAM and 192TB (12 x 16TB) of Synology Enterprise Drives and 1.6TB (2 x 800GB) Cache Fully Assembled and Tested By CustomTechSales

FULLY ASSEMBLED AND TESTED BY CUSTOMTECHSALES
32GB Synology RAM
TWELVE (12) 16TB Synology Enterprise Drives
M2D20 Synology Cache Adapter
with 1.6TB (2 x 800GB) Synology Cache

$15,739^.01 –