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DS120J |
Description: | DiskStation DS120j - NAS - Tower - Marvell Armada 3700 - 88F3720 - Grey |
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.

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Replacements shipped in 10 days or less.
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DS120J Overview
DS120J is a NAS storage solution featuring a 1‐bay design that supports both SATA HDD and SATA SSD drives with a total storage capacity of up to 16 TB. It offers a RAID 0 configuration for straightforward data management and protection while delivering performance in a compact desktop form factor powered by a Realtek processor with 2 cores and 2 GB of pre‐installed DDR3 memory (upgradeable to 4 GB).
DS120J provides connectivity through a USB 2.0 interface alongside a 1GbE network port, ensuring efficient data transfer and network support. With active cooling, a single power supply, no expansion support, and intended use cases including SMB backup, virtualization, and media serving, DS120J is optimized for compact office environments and home backup solutions.
What is the price of DS120J?
Pricing for DS120J is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for DS120J.
Explore more options from Storage or explore other Synology products.
DS120J Specifications
Product Type | Storage System |
Storage Type | NAS |
Form Factor | Desktop |
Bay Count | 1-bay |
Supported Drive Types | SATA HDD / SATA SSD |
Hot-Swap Support | No |
Max Supported Capacity | 16 TB |
RAID Support | RAID 0 |
CPU Type | Realtek |
CPU Cores | 2 |
Installed RAM | 2 GB |
Max RAM Capacity | 4 GB |
RAM Type | DDR3 |
Network Ports | 1GbE |
LAN Ports | 1 |
USB Ports | USB 2.0 |
Expansion Support | No |
Cooling | Active |
Power Supply | Single |
Power Supply Wattage | N/A |
Operating System | DSM |
Snapshot Support | No |
Cloud Sync Support | Yes |
Virtualization Ready | No |
ISCSI Support | No |
Surveillance Support | Yes |
Use Case | Home Backup |
Product Name | Synology DiskStation DS120j |
Height | 9.13 inches |
Width | 6.54 inches |
Depth | 4.06 inches |
Weight | 2.8 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.







Product Comparison Table
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Bay Count | 16-bay | 8-bay | 24-bay | 1-bay | 12-bay |
Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
Cooling | Redundant Fan | Redundant Fan | Redundant Fan | Active | Active |
CPU Cores | 8 | 8 | 8 | 2 | 8 |
CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Realtek | Intel Xeon |
Depth | 28 inches | 25.0 inches | 28 inches | 4.06 inches | 28 inches |
Expansion Support | Yes | Yes | Yes | No | Yes |
Form Factor | Rackmount | Rackmount | Rackmount | Desktop | Rackmount |
Height | 3 inches | 1.7 inches | 4 inches | 9.13 inches | 3.5 inches |
Hot-Swap Support | Yes | Yes | Yes | No | Yes |
Installed RAM | 16 GB | 16 GB | 16 GB | 2 GB | 16 GB |
iSCSI Support | Yes | Yes | Yes | No | Yes |
LAN Ports | 4 | 2 | 2 | 1 | 4 |
Max RAM Capacity | 64 GB | 64 GB | 64 GB | 4 GB | 64 GB |
Max Supported Capacity | 512 TB | 128 TB | 512 TB | 16 TB | 1 PB |
Network Ports | 10GbE | 10GbE | 10GbE | 1GbE | 10GbE |
Operating System | Custom OS | Custom OS | Custom OS | DSM | Custom OS |
Power Supply | Redundant | Redundant | Redundant | Single | Redundant |
Power Supply Wattage | 750W | 500W | 500W | N/A | 750W |
Product Name | K2R70A Enterprise NAS Storage System | BK765A Enterprise Storage System | QQ695A Enterprise SAN Storage System | Synology DiskStation DS120j | UC3200 Enterprise Storage System |
Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
RAM Type | ECC DDR4 | ECC DDR4 | ECC DDR4 | DDR3 | ECC DDR4 |
Snapshot Support | Yes | Yes | Yes | No | Yes |
Storage Type | NAS | NAS | SAN | NAS | SAN |
Supported Drive Types | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | Mixed | Mixed | SATA HDD / SATA SSD | Mixed |
Surveillance Support | Yes | No | No | Yes | No |
USB Ports | USB 3.2 | USB 3.2 | USB 3.1 | USB 2.0 | USB 3.2 |
Use Case | Enterprise Data Center | SMB / Enterprise Data Center / Media Server / Virtualization | Enterprise Data Center | Home Backup | Enterprise Data Center |
Virtualization Ready | Yes | Yes | Yes | No | Yes |
Weight | 45 lbs | 35 lbs | 50 lbs | 2.8 lbs | 45 lbs |
Width | 17 inches | 17.5 inches | 17.5 inches | 6.54 inches | 17.5 inches |
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