Brand:  Synology Flash Memory Type:  SD Color:  White, Black Screen Size:  3.5 Inches Series:  DS220j Video Capture Resolution:  4K Has Image Stabilization:  Yes Item Weight:  1.5 Kilograms Are Batteries Included:  No 24/7 file server for your household to store share and backup personal data Award-winning DiskStation Manager (DSM) brings intuitive operation flow and reduces learning curve Access and share data with any Windows macOS and Linux computers or mobile devices Integrated media server to support multimedia content streaming. Freely access private cloud files on-the-go and back up mobile photos with iOS and Android apps Compatible Drive Type* (See all supported drives)-3.5 inch SATA HDD, 2.5 inch SATA HDD (with optional 2.5 inch Disk Holder), 2.5 inch SATA SSD (with optional 2.5 inch Disk Holder). Note- "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay