คำอธิบาย
| Brand | NAS |
| Model | DS1821+ |
| CPU Model |
AMD RyzenTM V1500B quad-core 2.2 GHz |
| Operating System | DSM |
| System Memory |
4 GB DDR4 ECC SODIMM (expandable up to 32 GB) |
| Drive Interface | 3.5″ SATA HDD 2.5″ SATA HDD 2.5″ SATA SSD M.2 2280 NVMe SSD |
| Number of Drives |
8x Drive Bays |
| Display Panel | N/A |
| LED Indicators | Status indicator Alert indicator Power LAN indicator Drive status indicator |
| Interface | 8 x 3.5″ or 2.5″ SATA HDD/SSD (drives not included) 2 x M.2 2280 NVMe SSD (drives not included) |
| USB Interface | 4 x USB 3.2 Gen 1 |
| LAN Interface | 4 x 1GbE RJ-45 |
| Video | N |
| Memory Slot | 2 |
| Buttons | Power button Reset button |
| Remote Control | N/A |
| Networking | N/A |
| RAID | Synology Hybrid RAID Basic JBOD RAID 0 RAID 1 RAID 5 RAID 6 RAID 10 |
| Standard Compliance | N/A |
| Security | N/A |
| OS Support | N/A |
| Management | N/A |
| File system | Internal: Btrfs, ext4 External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT9 |
| File Sharing | N/A |
| Time Synchronization | Offers one or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Amazon S3- compatible storage, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers and Yandex Disk. |
| Special Features | • Accelerated Performance 177% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor1 • Maximize Performance Turbocharge HDD arrays without occupying drive bays using dual built-in M.2 slots for NVMe SSD cache • Expansion Made Easy Scale up on demand to 18 drives with two DX517 expansion units2 • Includes Everything to Protect Your Data Back up critical data from public clouds, PCs, servers, VMs, and Synology NAS with Synology Active Backup suite, Hyper Backup, and Snapshot Replication • Ready for 10/25GbE Supports 10GbE SFP+/RJ-45 and 25GbE SFP28 NICs to instantly increase network bandwidth based on your infrastructure3 |
| Cooling Fans | 120 mm x 120 mm x 2 pcs |
| Power Supply |
100V to 240V AC |
| Power Consumption | 59.8 W (Access) 26.18 W (HDD Hibernation) |
| Environment | RoHS Compliant |
| Certification | FCC CE BSMI EAC CCC KC VCCI RCM |
| Packaging Content |
Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1 |
| Dimension | (W x D x H) : 16.60 x 34.30 x 24.30 cm |
| Net Weight | 6.00 KG |
| Package Dimension | (W x D x H) : 35.06 x 45.00 x 31.00 cm |
| Gross Weight | 7.05 KG |
| Volume | 48,908.70 cm3 |
