Experience the Sound of Silence: Omada’s Newest Managed Switches Redefine Acoustic Engineering

Experience the Sound of Silence: Omada’s Newest Managed Switches Redefine Acoustic Engineering

Experience the Sound of Silence: Omada’s Newest Managed Switches Redefine Acoustic Engineering
Experience the Sound of Silence: Omada’s Newest Managed Switches Redefine Acoustic Engineering
Yesterday - last edited Yesterday

Omada has always prioritized high-performance networking for SMBs, hospitality, and high-end residential environments.

Recognizing that rack-mount PoE switches are often deployed in noise-sensitive areas like home offices, classrooms, or quiet boutique spaces, acoustic comfort is as critical as data throughput.

 

Based on valuable user feedback regarding fan noise—specifically during the high-speed bursts at startup or conservative fan curves under light loads—the Omada engineering team has completely deconstructed and redesigned the cooling systems. The goal was to achieve a significant leap in noise reduction without compromising system stability.

 

A Multi-Dimensional Approach to Silence

In the newest Omada managed switches, the design moves beyond simple speed adjustments to systematically address noise from three core system levels:

1. Heat Dissipation Optimization 

To reduce the need for active cooling, thermal efficiency has been significantly enhanced:

  • Advanced Material Science: Integration of passive cooling methods, such as graphite, heat pipe, to dissipate heat from the chipset more efficiently.

  • Airflow Redesign: A structural overhaul of the internal chassis eliminates "dead zones" and strengthens airflow around concentrated heat sources.

 

2. Hardware & Material Upgrades

  • Low-Noise Fan Components: Switches now feature premium fan, with optimizing blade geometry, replacing standard oil-impregnated bearings with vaporization bearings and/or dual ball bearings, to minimize air turbulence.

  • Vent & Intake Design: The honeycomb and intake openings have been reshaped to reduce air resistance (the "whistling" effect) even at high velocities.

 

3. Intelligent Speed Control Strategy

  • Smart Startup: The boot-up sequence is optimized to prevent unnecessary full-speed bursts unless thermally required.

  • High-Precision Sensing: Utilizing a fusion of temperature sensors and PWM stepless regulation, the fans respond fluidly to real-time loads.

 

The Results: Noise Levels Redefined

The engineering objective was to ensure the network is seen through its performance, but not heard.

Below is the performance of the new lineup across different PoE budget tiers:

 

Model

SG3428MP(UN)6.30

SG3428XMP(UN)3.30

SG3452P(UN)3.40

SG3428XMPP(UN)1.20

SG3452XP(UN)2.30

SG3452XMPP(UN) 1.20

SG3428XPP-M2(UN)2.0

Ports

24× 1G RJ45
4×1G SFP

24× 1G RJ45
4×10G SFP+

48×1G RJ45

4×1G SFP

24× 1G RJ45
4×10G SFP+

48× 1G RJ45
4×10G SFP+

48× 1G RJ45
4×10G SFP+

24× 2.5G RJ45
4×10G SFP+

PoE Ports

24× PoE+

24× PoE+

48× PoE+

16× PoE+

8× PoE++

48× PoE+

40× PoE+

8× PoE++

24× PoE++

PoE Budget

384W

384W

384W

500W

500W

750W

770W

Max

extreme heat*

45.0 dBA@1m

43.7 dBA@1m

48.2 dBA@1m

46.7 dBA@1m

48.2 dBA@1m

57.0 dBA@1m

59.7 dBA@1m

25°C ambient

39.3 dBA@1m

38.1 dBA@1m

42.5 dBA@1m

43.4 dBA@1m

46.0 dBA@1m

45.4 dBA@1m

52.7 dBA@1m

Typical
80% load**, 25°C ambient

38.3 dBA@1m

36.9 dBA@1m

37.0 dBA@1m

38.8 dBA@1m

40.4 dBA@1m

38.3 dBA@1m

44.6 dBA@1m

Min
25°C ambient

Fanless Mode

Fanless Mode

Fanless Mode

Fanless Mode

Fanless Mode

Fanless Mode

38.7 dBA@1m

Silent Startup

×

 

Model

SG2428P(UN)5.40

SG3210XHP-M2(UN)3.20

SX3832MPP(UN)1.20

SG3428X-M2(UN) 1.30

SX3832(UN)1.20

SG3428XF(UN)1.30

SX3016F(UN)1.30

SX3032F(UN)1.20

Ports

24× 1G RJ45
4×1G SFP

8× 2.5G RJ45
2×10G SFP+

24× 10G RJ45
8×10G SFP+

24× 2.5G RJ45
4×10G SFP+

24× 10G RJ45
8×10G SFP+

20×1G SFP
4×1G Combo SFP/RJ45
 4× 10G SFP+

16×10G SFP+

32×10G SFP+

PoE Ports

24× PoE+

8× PoE+

24× PoE++

non-PoE

non-PoE

non-PoE

non-PoE

non-PoE

PoE Budget

250W

240W

770W

non-PoE

non-PoE

non-PoE

non-PoE

non-PoE

Max

extreme heat*

32.5 dBA@1m

29.7 dBA@1m

55.2 dBA@1m

30.5 dBA@1m

52.0 dBA@1m

45.9 dBA@1m

45.1 dBA@1m

42.4 dBA@1m

25°C ambient

25.7 dBA@1m

21.4 dBA@1m

54.4 dBA@1m

20.0 dBA@1m

43.2dBA@1m

31.5 dBA @1m

41.2 dBA @1m

39.5dBA@1m

Typical
80% load**, 25°C ambient

25.7 dBA@1m

13.7dBA@1m

54.4 dBA@1m

20.0 dBA@1m

43.2 dBA@1m

31.5 dBA @1m

37.0 dBA @1m

37.0 dBA@1m

Min
25°C ambient

Fanless Mode

Fanless Mode

39.9 dBA@1m

Fanless Mode

31.3 dBA @1m

 31.5 dBA @1m

 32.6 dBA @1m

31.7 dBA @1m

Silent Startup

×

×

×

×

×

 

*extreme heat: Measured at maximum operating temperature per switch design.

**Measured with full motherboard and 80% PoE load (PoE models) or with 80% ports populated (non-PoE models).

 

 

Why It Matters

By combining superior cooling with reduced fan noise, Omada ensures these switches can be seamlessly integrated into any environment—from a central data closet to the shelf of a designer villa. Omada remains continuous optimization based on real-world deployment needs.

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