Upgrade to ultra-high-speed 25GbE with ease!
While 10GbE is a solid base for high-speed network transmission, the ultra-high-speed 25GbE provides comparative cost advantages and compatibility in SMB server rooms to satisfy data computing applications.
High-speed Storage & AI applications
25GbE fulfills bandwidth requirements in high-speed storage, virtualization, and AI applications.
High Compatibility
25GbE SFP28 is backward compatible with 10GbE SFP+/1GbE SFP and can be connected to 50GbE/100GbE via Breakout DAC, easily integrating existing network infrastructure.
Cost-effectiveness
25GbE is 2.5 times faster than 10GbE while the cost is less than 2 times higher, suitable for upgrading backbone network.
High switching capacity of 820Gbps for backbone networks
The QSW-M5216-1T has sixteen 25GbE SFP28 fiber ports and offers backbone switching capacity of 820Gbps, guaranteeing the full potential of each port. The QSW-M5216-1T can serve as the core switch uplinking to 25G/100G Servers and NAS in server rooms or connecting to 25G/10G edge fiber switches.

Flexible deployment with multiple 25GbE and 10GbE ports
Along with sixteen 25GbE SFP28 fiber ports, the QSW-M5216-1T is has one 10GBASE-T port for enabling hybrid high-speed networks. Its 25GbE SFP28 interfaces are backward compatible with 10GbE SFP+/1GbE SFP; and 10GbE RJ45 is compatible with NBASE-T technologies to support five speeds (10G / 5G / 2.5G / 1G / 100M).
25GbE SFP28 Fiber
Use SFP28 DAC (Direct Attach Copper) or transceivers to connect to NAS with fiber interfaces, network cards and switches.
10GbE RJ45
Use existing 6a cables to connect to 10GbE NAS or 10GbE switches.
Pair with a NAS and 100GbE network expansion card for high-performance, low-latency computing
By using QSFP28 to (4) SFP28 cables, you can easily connect the four 25GbE ports on the QSW-M5216-1T to a NAS with a QXG-100G2SF-E810 dual-port 100GbE network expansion card. Set a group of QSFP28 to (4) SFP28 connection as the main route and the other as a backup route.

QSS: Intuitive Network Management Software
The QNAP Switch System (QSS) features an easy-to-use Web GUI with value-added functions to simplify network set up and management.
Sleek Design
Use the at-a-glance major functions, flat control layers and one-click login to simplify set up and management.
GUI
The on-screen display matches physical ports for greater usability.
Value-added
With the settings guide, status chart reference, online firmware update, learning and management costs are greatly reduced.
QSS: Human-centered settings guide
QSS provides an overview dashboard, port management and setting guide to help control Layer 2 networks.
Overview Dashboard
View real-time system information, port connection status and port traffic.
Port Management
View port status, port packet statistics, and configure port speeds.
Setting Guide
Quickly learn how to set up the network using the introduction and step-by-step guide.
Exclusive Status Chart Referencing
Refer to four major status charts during each configuration to avoid going back and forth between different setting pages.
Online Firmware Check and Update
Keep your QSW-M5216-1T secure with one-click firmware updates.
Optimize Network Performance with bandwidth and packet control
The QSW-M5216-1T provides bandwidth and packet control functions (such as LACP, VLAN, QoS, and IGMP Snooping) to boost network performance through IP grouping and bandwidth management.
| LACP |
VLAN |
QoS |
IGMP Snooping |
| Link Aggregation (LAG) combines multiple network connections to increase throughput and protect against connection failure. |
Virtual Networks (VLAN) allows groups of devices from different networks to be combined into a single network. |
QoS (Quality of Service) helps prioritize bandwidth usage to optimize network resource allocation. |
IGMP snooping assists in minimizing bandwidth loss and preventing network information leakage. |
Powerful security and system functions
The QSW-M5216-1T has powerful security and system functions (including ACL, LLDP, RSTP and Flow Control) to help enhance network reliability with access controls, troubleshooting, loop prevention and avoiding packet loss.
| ACL |
LLDP |
RSTP |
Flow Control |
- Access controls
- Security system
|
- Device disclosure
- Troubleshooting
|
- Loop prevention
- Backup path
|
- Balance speed
- Jam prevention
|
Near-silent and energy saving
With its smart cooling system, the QSW-M5216-1T ensures high-speed network performance without distracting background noise. IEEE 802.3az (EEE) support also reduces power consumption without sacrificing performance or functionality. By dynamically detecting and adjusting for link speeds and activities, the QSW-M5216-1T provides energy savings of up to 50% to minimize operational costs.