
Best selling NAS accessories from Synology
Here you’ll find the best NAS accessories from Synology. The ranking is based on the best-selling products from this brand within the category. In addition to sales volume, factors such as availability, pricing, and overall customer relevance also influence the order. For each product, we include a short description and the most important highlights from customer reviews, giving you a quick overview of the most popular Synology options. This page always stays fresh and updates automatically.
1. Synology E10G22-T1-Mini
The Synology E10G22-T1-Mini network upgrade module is designed to easily and quickly upgrade your Synology system with 10GbE connectivity. Its simple installation, low implementation costs, and support for nearly any network environment make it the ideal solution for small businesses and individual users looking to maximize the performance potential of their installations.

2. Synology RKS-02
The Synology Rail Kit RKS-02 is a practical accessory for the easy installation and maintenance of Synology RackStation models. It allows for quick and straightforward access to devices mounted in the rack, significantly simplifying maintenance and component replacement. The kit is equipped with sliding rails that enable smooth movement of the RackStation within the rack. It is suitable for a variety of Synology models and provides a robust solution for the demands of server environments. Installation requires a rack mounting depth of 610 mm to 890 mm and a minimum width of the mounting posts of 450 mm to ensure an optimal fit. The RKS-02 is a valuable addition to any IT infrastructure that relies on efficiency and accessibility.
- Allows easy access to RackStation models for maintenance work
- Compatible with a variety of Synology RackStation models
- Robust sliding rail solution for smooth movement in the rack
- Easy installation with specific requirements for rack mounting holes.

3. Synology E10G18-T1
With an RJ-45 connector and support for IEEE 802.3an/bz (10GBASE-T/NBASE-T) and 802.3x, the E10G18-T1 enables you to smoothly migrate to a 10GbE network environment using your existing infrastructure. The E10G18-T1 supports backward compatibility and autonegotiation between 10 Gbps, 5 Gbps, 2.5 Gbps, 1 Gbps, and 100 Mbps, making it a cost-effective solution for small businesses and home users to overcome data transfer bottlenecks.

4. Synology Camera License Pack (4 licenses)
Synology Device License - 4x IP Camera License for Surveillance Station
Camera license package for installing additional IP cameras in the Synology Surveillance Station. By default, each Synology DiskStation comes with one IP camera license pre-installed. The Synology camera license packages expand the IP camera setup of the Synology Surveillance Station. By entering the license key in the user interface of the Surveillance Station, you can set up and manage more than one IP camera on the network. The Surveillance Station supports a wide range of over 1,400 IP cameras, including Abus IP cameras.
How to install the Synology camera license package? (Before applying the license key, check the maximum number of IP cameras supported by your Synology NAS server.)
1. Log in to the Surveillance Station.
2. Go to License in the management column on the left side.
3. Click the Add button.
4. Read the agreement and check the Accept option.
5. Enter the license key. Note: Pay attention to uppercase and lowercase letters when entering the key.
6. Click OK.
7. After confirming the license key, you can install one or more cameras under Camera.

5. Synology Camera License Pack (8 licenses)
The Synology Camera Pack includes eight licenses for setting up additional cameras in the Synology Surveillance Station. With the camera license pack, the surveillance system can be expanded by up to eight IP cameras. Panorama and multi-lens cameras that provide multiple streams only require one license each. The cameras can be set up and managed in the Surveillance Station interface after entering the license key.
By entering the license key in the Surveillance Station interface, you can set up and manage the additional devices on the network. In the Surveillance Station, go to the main menu, select License, and then click on Add. An installation wizard will guide you through adding the camera licenses in the Surveillance Station.

6. Synology Camera License Pack (1 license)
Synology Device License - 1x IP Camera License for Surveillance Station
Camera license package for installing additional IP cameras in the Synology Surveillance Station. By default, each Synology DiskStation comes with one pre-installed IP camera license. The Synology camera license packages expand the IP camera setup of the Synology Surveillance Station. By entering the license key in the user interface of the Surveillance Station, you can set up and manage more than one IP camera on the network. The Surveillance Station supports a wide range of over 1,400 IP cameras, including Abus IP cameras, Mobotix network cameras, and Axis IP cameras.
How to install the Synology camera license package? (Before applying the license key, check the maximum number of IP cameras supported by your Synology NAS server.)
1. Log in to the Surveillance Station.
2. Go to License in the management column on the left side.
3. Click the Add button.
4. Read the agreement and check the Accept option.
5. Enter the license key. Note: Pay attention to uppercase and lowercase letters when entering the key.
6. Click OK.
7. After confirming the license key, you can install one or more cameras under Camera.
We recommend the Synology camera sets with compatible IP cameras and camera licenses for video surveillance at home.

7. Synology E10G30-T2
The Synology E10G30-T2 is a powerful dual-port 10GbE network card specifically designed for Synology NAS systems. It enables high network performance with a maximum data transfer rate of up to 10,000 Mbit/s. This network card is easy to install and integrates seamlessly into existing systems, making it an ideal solution for users looking to enhance their network speed and efficiency. The E10G30-T2 supports various Ethernet standards and offers a variety of connection options through two RJ-45 ports. With its compact design and support for PCI Express 3.0, it is suitable for both servers and workstations. The card is designed to operate in a temperature range of 0 to 40 °C, providing reliable performance under various conditions.
- Dual-Port 10GbE for high network speed
- Easy integration into Synology NAS systems
- Supports PCI Express 3.0 for improved performance
- Maximum data transfer rate of 10,000 Mbit/s
- Compatible with various Ethernet standards.

8. Synology MailPlus licence package 5 e-mail accounts
MailPlus license for 5 additional email accounts. Expansion package for five more email accounts, with unlimited validity. Algorithm for fast full-text search. Intuitive web client and mobile apps for Android and iOS. Supports high-availability architecture for maximum service availability. Use Synology MailPlus for a secure, reliable, and private email server. By default, 5 free accounts are installed on a Synology NAS supported by MailPlus. With this Synology MailPlus license, you can increase the number of usable email accounts to a total of 10 accounts. Email aliases do not count as accounts, so no additional licenses are required for them. MailPlus can be accessed in your web browser and on mobile devices via the email app on Android and iOS devices. With tagging, filtering, and full-text search, you can easily organize your emails. MailPlus supports high-availability clusters. With its data mirroring mechanisms, Synology High Availability ensures that every bit of data is securely stored on a different physical unit. This process occurs in real-time, so in the event of hardware failures, all data remains intact and is quickly available again. When you log into your Synology account on your Synology NAS, you can add or manage the license keys in the MailPlus Server package license. A license key can only be applied to one Synology product supported by MailPlus at a time.

9. Synology DX517 Expansion Unit
Synology DX517 offers a straightforward solution for expanding the storage capacity of your DiskStation with its intuitive plug-and-use design. With the DX517, you can instantly install up to 5 additional hard drives, allowing you to expand your RAID volume online or use the drives as a local backup target for your DiskStation.

10. Synology RX1217RP Expansion Unit
Synology offers you the flexibility to start with a smaller storage capacity and expand it according to the growth of your company. The RX1217 and RX1217RP are expansion units with 12 bays designed for seamless capacity expansion of selected Synology RackStations.
