• 2 x 550W Power Supplies
• 4 x Fan 28x10GbT + 2x QSFP28
• Max 10GbE density: 36 (28 10GbT and 8 via QSFP28 breakout)
• Max 25GbE density: 8 via QSFP28 breakout
• Max 40GbE density: 2
• Max 50GbE density: 4
• Max 100GbE density: 2
• Switching capacity: 960Gbps
• Throughput: 720Mpps
• Max power consumption: 300W
• Typical operating power: 250W
• Number of fan trays: 4
• Fans per fan tray: 1
• Weight: 20.67 lbs (9.38 kg)
• Max thermal output: 1,023 BTU/h

OS10#show version
Dell EMC Networking OS10 Enterprise
Copyright (c) 1999-2021 by Dell Inc. All Rights Reserved.
OS Version: 10.5.2.6
Build Version: 10.5.2.6.354
Build Time: 2021-06-15T08:30:09+0000
System Type: S4128T-ON
Architecture: x86_64
Up Time: 00:02:37OS10#show inventory
Product: S4128T-ON
Description: S4128T-ON 28x10GbE copper, 2x100GbE QSFP28 Interface Module
Software version: 10.5.2.6
Product Base:
Product Serial Number :
Product Part Number:Unit TypePart NumberRevPiece Part IDSvc TagExprs Svc 808 656 license statusSystem Name:Dell EMC
Product Name:S4128T-ON
Hardware Version:A04
Platform Tag:5X0XNK2
Product Base:
Product Serial Number:
Product Part Number:
License Type:PERPETUAL
License Duration:Unlimited
License Status:Active
License Ambient temp sensor19
12QSFP Ambient temp sensor17
13Right PHY Ambient temp sensor16
14Near NPU Ambient temp sensor24
15Left PHY Ambient temp sensor19
16Left of front vents temp sensor16
17Ambient temp sensor17
18NPU temp sensor30