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Compact desktop switch with ventilated metal case, three SFP+ ports and eight RJ45 ports

Qnap

Qnap QSW-308S-US network switch 3×10G SFP+ 8×1G RJ45

SKU CH-33PZ-40PPG MPN QSW-308S-US

A fanless desktop switch with three 10 GbE SFP+ ports and eight 1 GbE RJ45 ports for silent high-speed networking

  • Product formatDesktop
  • Supported standardsIEEE 802.3 Ethernet IEEE 802.3u 100BASE-TX IEEE 802.3ab 1000
  • Main ports3 × 10 GbE SFP+ ports (Note: The 10 GbE SFP+ ports are not b
  • MAC table size10K
  • Jumbo frame support9 KB
  • Indicator lightsPer switch: Power / Status Per port: Speed / Link / Activity
  • Silent operation with fanless ventilated design
  • Three 10 GbE SFP+ ports for high-speed fibre links
  • Eight Gigabit RJ45 ports connect multiple wired devices
  • Low 1.8 W standby power reduces energy use
  • 9 KB jumbo frames boost large-packet throughput

Desktop 10 GbE Switch

The QSW-308S-US is a fanless desktop switch with three 10 GbE SFP+ ports and eight Gigabit RJ45 ports. It targets small offices and home labs that need a silent uplinks-to-clients aggregation point. Auto-negotiation handles speed and duplex detection on every port. The unit operates from a 100-240 V AC adapter and supports jumbo frames up to 9 KB.

Sustained Load Behaviour

Under full line-rate traffic across all eleven ports the switch draws 36 W while the fanless ventilated chassis keeps temperatures within the 0 to 40 °C operating range. With links down the standby draw falls to 1.8 W. A 10 K MAC address table and per-port LEDs give visibility during continuous operation. No moving parts mean acoustic output stays at zero regardless of throughput.

Upgrade Context

This switch replaces an all-Gigabit desktop switch when three 10 GbE fibre uplinks are required for servers, NAS units or workstations. The SFP+ ports accept only 10 GbE modules, so existing 1 GbE SFP transceivers cannot be reused. Buyers who need more than three 10 GbE ports or backward-compatible SFP+ slots should look at larger models.

How it compares

Measured against everything we stock in Ethernet & PoE Switches, at today’s prices. Recalculated every night.

Price $129.99
Cheaper than about 75% of the 2,759 comparable items (median $482.99).

Specifications

Product
Brand nameQnap
Model nameQSW-308S-US
Connectivity
Supported standardsIEEE 802.3 Ethernet
IEEE 802.3u 100BASE-TX
IEEE 802.3ab 1000BASE-T
MAC table size10K
Jumbo frame support9 KB
Ports & slots
Main ports3 × 10 GbE SFP+ ports (Note: The 10 GbE SFP+ ports are not backward compatible with 1 GbE SFP.)
8 × 1 GbE (RJ45) ports
Power
Power detailsSupply Unit: 100-240 V AC, 50-60 Hz, max. 2.5A
Power Consumption (W): All ports used, line-rate traffic: 36 W
Min power (W): link-down standby: 1.8 W
Size & build
Product dimensions1.67 in × 11.42 in × 5 in
Product weight1.63 lb (0.74 kg)
Shipping weight1.36 kg
Package size381 × 203 × 76 mm
In the box
In the boxQSW-308S
Power Cord
Power Adapter
Quick Installation Guide (QIG)
Environment & compliance
Temperature rangeOperating Temperature: 0 to 40 degree Celsius (32 to 104 degree Fahrenheit)
Humidity rangeOperating Humidity: 5% ~ 95% non-condensing
More details
Product formatDesktop
Indicator lightsPer switch: Power / Status
Per port: Speed / Link / Activity

Questions about this item

How loud and hot does the fanless QSW-308S-US get when all ports run at line rate for hours?

The switch uses a fanless ventilated chassis for silent operation. At full load it draws 36 W and is rated for 0 to 40 °C ambient temperature.

What cables and transceivers must I already have to use the three 10 GbE SFP+ ports and eight RJ45 ports?

You need SFP+ modules or direct-attach cables for the 10 GbE ports — they do not accept 1 GbE SFP — and standard Cat5e or better Ethernet cables for the eight RJ45 ports.

Will my older 100 Mbps and 1 Gbps devices work alongside the 10 GbE uplinks on this switch?

The eight RJ45 ports support IEEE 802.3u 100BASE-TX and IEEE 802.3ab 1000BASE-T with auto-negotiation, so legacy 100 Mbps and 1 Gbps gear connects directly while the SFP+ ports handle 10 GbE uplinks.

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