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QNAP QSW-2104-2S-A

QNAP QSW-2104-2S switch front view on a white background

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QSW-2104-2S-A (US, 6-port, SFP+ uplink variant)

Ports:
2 x 10G SFP+ + 4 x 2.5G Base-T (RJ45)
Switching capacity:
60 Gbps
Non-blocking bandwidth:
30 Gbps

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Package details

Model: QSW-2104-2S-A

6-port version with 2 x 10G SFP+ and 4 x 2.5G RJ45.

Condition:
Confirm new or reconditioned on the listing
Quantity:
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Important limit: No 10G RJ45 copper ports; 10G devices need SFP+ fiber or DAC

How many units?

Confirm condition, quantity and included accessories on the retailer’s listing.

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Specifications checked November 5, 2026. Full product details

Size and placement

Size and placement

Dimensions
34 x 180 x 145 mm (H x W x D)
Weight
1.57 lbs (0.71 kg)
Manufacturer specifications

QNAP QSW-2104-2S-A 6-Port Managed Web Smart Switch

A 6-port desktop switch with two 10GbE SFP+ fiber ports and four 2.5GbE RJ45 ports, fanless, managed via a web interface.

Which version should you buy?

Selected package: QSW-2104-2S-A (US, 6-port, SFP+ uplink variant).

Selected package

  • QSW-2104-2S-A

    This page

    Model: QSW-2104-2S-A

    What differs
    6-port version with 2 x 10G SFP+ and 4 x 2.5G RJ45.
    Best for
    Buyers with a fiber/DAC 10G uplink and multi-gig devices.
    Check price on Amazon

Related models and generations

These are different products. Check their specifications separately.

  • QSW-2104-2T Model: QSW-2104-2T-R2

    6-port version with 2 x 10G RJ45 and 4 x 2.5G RJ45.

    Buyers who want 10G over copper Cat6a cabling.

Purchase links appear where the exact offer is verified. Confirm the named model, quantity and accessories before ordering.

Watch out

  • The -2S and -2T variants share the QSW-2104 name; -2S uses SFP+ fiber for its 10G ports, -2T uses RJ45.
  • -A in the SKU marks the US package; the switch hardware matches the QSW-2104-2S spec.

Why people pick it

  • Two 10GbE SFP+ ports allow a fiber or DAC uplink without needing a 10G RJ45 PHY
  • Four 2.5GbE RJ45 ports cover multi-gig wired devices
  • Fanless design for quiet placement
  • 60 Gbps switching capacity with 30 Gbps non-blocking
  • Web Smart management without a CLI learning curve

Know before you buy

  • No 10G RJ45 copper ports; 10G devices need SFP+ fiber or DAC
  • Only 6 ports total, so it suits a small cluster rather than a whole rack
  • External 12V power adapter rather than an internal supply
  • Web Smart management only; no full managed feature set like the QSW-M series

Full specifications

Ports2 x 10G SFP+ + 4 x 2.5G Base-T (RJ45)
Switching capacity60 Gbps
Non-blocking bandwidth30 Gbps
Forwarding rate8.93 Mpps
MAC address table16K entries
Jumbo framesUp to 10240 bytes (10239 payload)
ManagementWeb Smart management (web browser); unmanaged plug-and-play operation out of the box
LayerLayer 2
LED indicators1 x System, 6 x Link/Activity, 2 x Speed
CoolingFanless, passive cooling
Power adapterExternal 12V DC / 1A adapter, max 12 W
Dimensions34 x 180 x 145 mm (H x W x D)
Weight1.57 lbs (0.71 kg)
CertificationCE, FCC, BSMI; EMC Class B

From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.