8Y5PX - Dell PowerSwitch Z9100-ON 32-Port 100GbE Switch

Dell EMC PowerSwitch Z9100-ON 1U data center switch with 32x 100GbE QSFP28 ports plus 2x 10GbE SFP+ uplinks, running Dell OS9/OS10.

The Dell 8Y5PX is the Manufacturer Part Number for the Dell EMC PowerSwitch Z9100-ON, a 1U high-density, multi-rate Ethernet switch built for high-performance data center and computing environments. It is configurable to provide up to 32 ports of 100GbE (QSFP28), 64 ports of 50GbE, 32 ports of 40GbE, 128 ports of 25GbE, or 128 ports of 10GbE, plus two additional fixed SFP+ ports for 10GbE/1GbE/100MbE uplinks. Leveraging a non-blocking switching architecture, the Z9100-ON delivers line-rate Layer 2 and Layer 3 forwarding, making it well suited for spine/leaf data center topologies, high-performance computing clusters, and 100Gbps migration projects. The switch ships with dual redundant hot-swappable AC power supplies and supports both standard and reverse airflow configurations, running on Dell OS9 with compatibility for Dell OS10 Enterprise.

• Manufacturer: Dell Technologies
• Product Family: Dell EMC PowerSwitch
• Product Series: Z-Series
• Model: Z9100-ON
• Product Type: Fixed-configuration Ethernet data center switch
• Form Factor: 1U rack-mountable
• Primary Ports: 32 x fixed 100GbE QSFP28 ports (configurable to 64x50GbE, 32x40GbE, 128x25GbE, or 128x10GbE)
• Uplink Ports: 2 x fixed 1/10GbE SFP+ ports
• Switching Capacity: Up to 6.4 Tbps (full duplex)
• Forwarding Rate: 4400 Mpps (full duplex)
• Latency: Sub-500ns / sub-microsecond
• MAC Address Table: Up to 136,000 entries
• Power Supply: 2 x redundant, hot-swappable 750W AC PSUs
• Max Power Consumption: 605 Watts
• Typical Power Consumption: 195 Watts
• PoE Support: Not applicable
• Airflow: Standard (I/O to PSU) or Reverse (PSU to I/O)
• Operating System: Dell OS9 (default), compatible with Dell OS10 Enterprise
• Routing Protocols: OSPF and BGP routing support
• Layer 2 Features: Virtual Link Trunking (VLT) and multi-VLT (mVLT) multi-chassis link aggregation
• Layer 3 Features: VRF-lite, IPv4 and IPv6 support
• Data Center Bridging: PFC, DCBX, and ETS supported
• Operating Temperature: 0°C to 45°C, 10-90% RH non-condensing
• Compatible Rail Kit: Dell Rail Kit, part number 100-566-027
• Transceivers: Not included

• 32 fixed ports of 100GbE QSFP28 for high-density data center connectivity
• Flexible port configuration supporting 50GbE, 40GbE, 25GbE, and 10GbE speeds
• Non-blocking switching architecture with line-rate L2/L3 forwarding
• Up to 6.4 Tbps of switching I/O bandwidth in full duplex mode
• Sub-microsecond latency for demanding, low-latency workloads
• Dual redundant, hot-swappable 750W AC power supplies for resiliency
• Selectable standard or reverse airflow to match rack cooling design
• Virtual Link Trunking (VLT) and multi-VLT for multi-chassis link aggregation
• Support for OSPF and BGP dynamic routing protocols
• Priority-based Flow Control (PFC), DCBX, and ETS for DCB environments
• Dual operating system support: Dell OS9 or Dell OS10 Enterprise
• Compact 1U design that conserves rack space while enabling 100Gbps migration

Designed for high-throughput data center spine, leaf, and computing network deployments.

• Spine or leaf switch in data center leaf-spine network architectures
• High-performance computing (HPC) cluster interconnects
• Aggregation point for 25GbE/40GbE/50GbE server racks migrating to 100GbE
• Software-defined data center (SDDC) network infrastructure
• Storage networking backbone requiring low-latency, high-bandwidth links
• Enterprise core switching for large-scale virtualization environments
• Financial services and real-time data processing networks requiring minimal latency

• High-density 100GbE ports save rack space
• Non-blocking architecture ensures line-rate performance
• Redundant PSUs improve uptime and reliability
• Flexible port speeds ease migration to 100Gbps
• VLT/mVLT enables resilient multi-chassis designs
• Dual OS support offers deployment flexibility

• Form Factor: 1U rack-mountable chassis
• Airflow Options: Standard (I/O to PSU) or Reverse (PSU to I/O)
• Power Supplies: 2 x hot-swappable, redundant 750W AC units
• Mounting: Compatible with Dell rail kit (P/N 100-566-027) for 4-post rack installation

Per available documentation, this product is validated for:

• Dell OS9 network operating system
• Dell OS10 Enterprise network operating system
• Dell Z9100 Switch Rail Kit (100-566-027) for 4-post rack mounting
• Interoperability with other Dell EMC PowerSwitch/Networking devices via VLT and mVLT multi-chassis link aggregation
• Standard QSFP28 100GbE, QSFP+ 40/50GbE, and SFP28 25GbE optical transceivers/cables
• IPv4 and IPv6 network environments with OSPF and BGP routing
• Data Center Bridging (DCB) environments using PFC, DCBX, and ETS

Note: Transceivers and optics are not included with the switch and must be purchased separately based on desired port speed configuration.

• Dell EMC PowerSwitch Z9100-ON switch unit
• 1 x rail kit (100-566-027)
• 1 x console cable
• 2 x hot-swappable AC power supply units

Q: What is the Dell 8Y5PX?

A: 8Y5PX is the Dell Manufacturer Part Number for the Dell EMC PowerSwitch Z9100-ON, a 1U fixed-configuration data center switch offering up to 32 ports of 100GbE plus 2 SFP+ ports.

Q: What port speeds does the Z9100-ON support?

A: The switch can be configured to provide 32 ports of 100GbE, 64 ports of 50GbE, 32 ports of 40GbE, 128 ports of 25GbE, or 128 ports of 10GbE, in addition to its two fixed SFP+ uplink ports.

Q: What is the switching capacity of the 8Y5PX?

A: According to third-party technical listings, the switch offers a switching capacity of 6.4 Tbps and a forwarding rate of 4400 Mpps in full duplex mode.

Q: Which operating systems does this switch support?

A: The switch ships running Dell OS9 by default and is also compatible with Dell OS10 Enterprise, per the Newegg Business product listing based on Dell specifications.

Q: Does the 8Y5PX include transceivers?

A: No. Per the manufacturer specification data reflected in reseller listings, transceivers are not included and must be purchased separately based on required port speed.

Q: What power supply configuration does the switch use?

A: It includes two redundant, hot-swappable 750W AC power supply units, and the official Dell spec sheet lists a maximum power consumption of 605 Watts and typical consumption of 195 Watts.

Q: Does Dell publish MTBF data for the Z9100-ON?

A: No. According to a Dell Community support response, Dell no longer provides MTBF data for this and other recent-generation switch models.

Q: What rack mounting options are available for this switch?

A: A dedicated Dell rail kit (part number 100-566-027) is available, designed for sliding, tool-less or tooled installation into standard 4-post rack enclosures.