| Technical Specifications Synology DiskStation DS420J Black - NAS Server |
| storage media |
| Supported Storage Interfaces | SATA, Serial ATA II, Serial ATA III |
| Supported drive storage sizes | 2.5, 3.5" |
| Maximum supported storage capacity | 64TB |
| RAID compatible | Yes |
| RAID Levels | 0,1,5,6,10,JBOD |
| Supported file systems | Fat, HFS+, NTFS, ext3, ext4 |
| Installed storage disks | No |
| Amount of supported drives storage | 4 |
| Installed storage unit type | No |
| Supported storage unit types | HDD & SSD |
| Processor |
| processor family | realtek |
| processor model | RTD1296 |
| processor frequency | 1.4GHz |
| Number of processor cores | 4 |
| Processor operating modes | 64-bit |
| Memory |
| Internal memory type | DDR4 |
| Built-in memory capacity | 1GB |
| Network |
| Ethernet LAN | Yes |
| Ethernet LAN data transfer rate | 1000 Mbit/s |
| wifi | No |
| iSCSI support | Yes |
| Ready for Wake-on-LAN | Yes |
| Supported network protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| connectivity |
| USB port | Yes |
| Number of USB 3.2 Gen 1 (3.1 Gen 1) Type A ports | two |
| Number of Ethernet LAN ports (RJ-45) | 1 |
| design |
| chassis type | Compact |
| type of cooling | Active |
| product color | Black |
| number of fans | 2 fan(s) |
| fan diameter | 8 cm |
| LED indicators | HDD, LAN, Dust, Status |
| security cable slot | Yes |
| Anti-theft padlock slot type | kensington |
| Performance |
| Type | IN THE |
| device class | Home & Home Office |
| backup function | Yes |
| Backup features | Cloud, iSCSI LUN |
| multilingual support | Yes |
| number of users | 1024 user(s) |
| Noise level | 20.6 dB |
| Management protocols | CIFS/AFP/NFS/FTP/WebDAV |
| web-based management | Yes |
| Access Control List (ACL) | Yes |
| reset button | Yes |
| on/off switch | Yes |
| Integrated FTP server | Yes |
| Supported browser | Chrome, Firefox, Edge, Internet Explorer 10+, Safari 10+ |
| system log | Yes |
| Software |
| operating system installed | DiskStation Manager |
| Compatible Windows operating system | Windows 10, Windows 7, Windows 8, Windows 8.1 |
| Compatible Mac operating system | Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave |
| Power management |
| Power supply location | External |
| Power supply capacity (PSU) | 90W |
| Number of energy suppliers | 1 |
| Power consumption (typical) | 21.71W |
| Power consumption (HDD standby) | 7.88W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| weights and dimensions |
| Width | 168mm |
| Depth | 230mm |
| Height | 184mm |
| Weight | 2.21 kg |
| Package content |
| external transformer | Yes |
| Cables | AC, LAN (RJ-45) |
| Quick Installation Manual | Yes |
| Technical details |
| sustainability certificates | RoHS |
| Environmental conditions |
| Operating temperature (TT) | 0 - 40°C |
| Operating relative humidity (HH) | 5 - 95% |
| Temperature limit (storage) | -20 - 60°C |
| Non-working humidity | 5 - 95% |
| operating altitude | 0 - 5000 meters |
| regulatory approval |
| Certification | FCC CE EAC BSMI VCCI CCC RCM |
