N9K-C93180YC-EX – 48×1/10/25G Fiber Ports – 6×40/100G QSFP28

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N9K-C93180YC-EX Description

The N9K-C93180YC-EX is a Cisco Nexus 9300-EX Series 1RU fixed data center switch for top-of-rack, middle-of-row and end-of-row server access. The switch has 48 1/10/25G fiber downlink ports and six 40/100G QSFP28 uplink ports, with 3.6 Tbps of bandwidth, over 2.6 Bpps of forwarding and latency under 1 microsecond. A port that carries an SFP-10G-T-X copper module leaves its adjacent ports empty or on passive DAC cables.

Quick Specs

Parameter

Specification

Product SKU

N9K-C93180YC-EX

Product type

Fixed-port data center switch

Form factor

1RU

Downlink ports

48 × 1/10/25G fiber ports

Uplink ports

6 × 40/100G QSFP28

Switching capacity

3.6 Tbps

Forwarding rate

Over 2.6 Bpps

Latency

Less than 1 microsecond

Management port

1 × RJ-45 and 1 × SFP

Typical power consumption

210W

Maximum power consumption

470W

Fan modules

4

Airflow options

Port-side intake or port-side exhaust

Product Performance

Switching Bandwidth
Forwarding Rate
1/10/25G Fiber Access

Key Features

48 Fiber Ports At Per-Port Speeds

Each of the 48 downlink ports is set to 1G, 10G or 25G, so one rack can host mixed server generations. At 25G the ports use FC-FEC and direct-attach cables reach 3 m.

Six QSFP28 Uplinks

The six fixed QSFP28 ports carry 40G or 100G and support 10/25/40/50/100G combinations, so no separate uplink module is involved.

Sub-Microsecond Latency

Latency stays under 1 microsecond, with 3.6 Tbps of bandwidth and over 2.6 Bpps of forwarding.

Table Scale For Large Fabrics

The EX series holds up to 896,000 LPM and IP host entries, 256,000 MAC addresses, 32,000 multicast routes and 16,000 VRFs.

Copper Module Port Limits

A port set to media-type 10g-tx for an SFP-10G-T-X module draws up to 2.5W, and the ports beside it stay empty or use passive DAC cables. Other 1/10/25G optics draw up to 1.5W per port.

Redundant Power, Matched Airflow

Two supplies run in a 1+1 layout, as 650W AC, 930W DC or 1200W HVAC/HVDC, and both must be the same type. The four fans and both supplies must share one airflow direction.

Application Scenarios

25G Fiber Server Leaf

Server racks with fiber NICs connect to the switch at 1G, 10G or 25G, over optics or over direct-attach cables of up to 3 m at 25G.

Middle-Of-Row Aggregation

In a middle-of-row or end-of-row design, the switch gathers several racks and sends their traffic toward the spine over 40G or 100G QSFP28 uplinks.

ACI Or NX-OS Leaf

Inside a Cisco ACI fabric the switch works as a leaf on ACI image 11.3 or later, and in a standalone data center it runs NX-OS release 7.0(3)I4.2 or later.

Product Comparison

Parameter

N9K-C93180YC-EX

N9K-C93180YC-FX3

N9K-C93108TC-EX

N9K-C93180LC-EX

Downlink ports

48 x 1/10/25G fiber

48 x 1/10/25G SFP28

48 x 100M/1/10GBASE-T

Up to 32 x 40/50G QSFP+ or 18 x 100G QSFP28

Uplink ports

6 x 40/100G QSFP28

6 x 40/100G QSFP28

6 x 40/100G QSFP28

Not published

Switching capacity

3.6 Tbps

3.6 Tbps

2.16 Tbps

3.6 Tbps

Forwarding rate

Over 2.6 Bpps

1.2 Bpps

Over 1.6 Bpps

Over 2.6 Bpps

Maximum power consumption

470W

Not published

499W

500W

Airflow

Port-side intake or exhaust

Not published

Port-side intake or exhaust

Port-side intake or exhaust

N9K-C93180YC-EX and N9K-C93180YC-FX3 both give 48 downlinks at 1G, 10G or 25G and six 40/100G QSFP28 uplinks at 3.6 Tbps, but N9K-C93180YC-EX is rated over 2.6 Bpps against 1.2 Bpps for N9K-C93180YC-FX3, so the choice between them follows the platform generation a fabric already runs. Copper access at 100M, 1G or 10G on 48 RJ-45 ports calls for N9K-C93108TC-EX, which drops to 2.16 Tbps. Designs that need 40G/50G or 100G downlinks, up to 32 QSFP+ or 18 QSFP28 ports, move to N9K-C93180LC-EX at the same 3.6 Tbps. A site that needs only 24 access ports can order the N9K-C93180YC-EX-24 configuration.

Ordering Checklist

  • Fan airflow: Order four fans, all NXA-FAN-30CFM-B (port-side intake) or all NXA-FAN-30CFM-F (port-side exhaust). Fans and power supplies facing different directions can overheat the switch.
  • Power supply type: Select two supplies of one type: NXA-PAC-650W-PI/PE, NXA-PDC-930W-PI/PE, UCSC-PSU-930WDC, UCS-PSU-6332-DC or N9K-PUV-1200W. AC, DC, HVAC and HVDC supplies cannot be mixed in one chassis.
  • Supply airflow: Choose the PI or PE suffix that matches the fans; N9K-PUV-1200W follows the other modules automatically. A supply with the wrong direction breaks the cold-aisle and hot-aisle plan.
  • Software licence: Add a C1E1TN9300XF-3Y/-5Y (Essential) or C1A1TN9300XF-3Y/-5Y (Advantage) subscription, or permanent NXOS-ES-XF / NXOS-AD-XF. The licence PID sets tier and term and is a separate line from the hardware.
  • Copper SFP limits: Keep neighbouring ports empty or filled with passive DAC next to SFP-10G-T-X ports set to media-type 10g-tx, which use 2.5W. Adjacent ports filled with optics exceed the per-port power limit.
  • Power cord: Add a country-specific cord PID, or select NO-POWER-CORD where no cord is wanted. The cord is a separate order line, and NO-POWER-CORD ships the switch without one.

Optional Add-ons

Model

Description

NXA-PAC-650W-PI

Cisco Nexus 9000 650W AC power supply, port-side intake

NXA-PAC-650W-PE

Cisco Nexus 9000 650W AC power supply, port-side exhaust

NXA-PDC-930W-PI

Cisco Nexus 9000 930W DC power supply, port-side intake

NXA-PDC-930W-PE

Cisco Nexus 9000 930W DC power supply, port-side exhaust

N9K-PUV-1200W

Cisco Nexus 9300 1200W universal HVAC/HVDC power supply

NXA-FAN-30CFM-F

Cisco Nexus 30CFM fan module, port-side exhaust airflow

NXA-FAN-30CFM-B

Cisco Nexus 30CFM fan module, port-side intake airflow

NXK-ACC-KIT-1RU

Cisco Nexus fixed accessory kit with 4-post rack mount kit

Specifications

Parameter Specification Parameter Specification
Product ID N9K-C93180YC-EX Product type Fixed-port data center switch
Form factor 1RU Deployment role Top-of-rack, middle-of-rack, and end-of-rack deployments
Software mode Cisco NX-OS or Cisco ACI mode Minimum NX-OS image NXOS-703I4.2
Minimum ACI image ACI-N9KDK9-11.3 Switching capacity 3.6 Tbps
Forwarding rate Over 2.6 Bpps Latency Less than 1 microsecond
Downlink ports 48 × 1/10/25G fiber ports Downlink speed configuration Per-port 1G, 10G, or 25G Ethernet
Uplink ports 6 × 40/100G QSFP28 CPU 4 cores
DRAM 24GB SSD drive 64GB
Packet buffer 40MB Management port 2 ports: 1 RJ-45 and 1 SFP
USB port 1 RS-232 serial ports 1
Power supply slots 2 Power redundancy 1+1 with two power supply modules
Power supply selection NXA-PAC-650W-PI 650W AC, NXA-PAC-650W-PE 650W AC, NXA-PDC-930W-PI 930W DC, NXA-PDC-930W-PE 930W DC, or N9K-PUV-1200W 1200W universal supply selected by input type Power supply matching requirement Installed power supplies must be the same type
Module airflow requirement Fan and power supply modules must use the same airflow direction Typical power consumption 210W
Maximum power consumption 470W Heat dissipation requirement 1603.706 BTU/hr
Input voltage AC 100 to 240V Input voltage HVAC 200 to 277V
Input voltage DC -48 to -60V Input voltage HVDC -240 to -380V
AC input frequency 50 to 60 Hz Fan modules 4
Supported fan modules NXA-FAN-30CFM-F, NXA-FAN-30CFM-B Airflow Port-side intake or port-side exhaust
Airflow matching requirement Match airflow direction across fans and power supplies Chassis width 17.5 in (44.5 cm)
Chassis depth 22.5 in (57.1 cm) Chassis height 1.72 in (4.4 cm)
Chassis weight without fans or PSUs 7.8 kg (17.2 lb) Fan module weight 0.12 kg (0.26 lb)
Power supply weight 1.1 kg (2.42 lb) Operating temperature 32 to 104F (0 to 40C)
Storage temperature -40 to 158F (-40 to 70C) Operating humidity 5 to 90%
Storage humidity 5 to 95% Operating altitude 0 to 13,123 ft (0 to 4000 m)
RoHS compliance Yes MTBF 390,330 hours
Maximum LPM routes 896,000 Maximum IP host entries 896,000
Maximum MAC address entries 256,000 Maximum multicast routes 32,000
IGMP snooping groups Shipping 8,000, maximum 32,000 Fabric extenders per switch 16
ACL entries 4000 ingress and 2000 egress per forwarding slice Total ACL entries 8000 ingress and 4000 egress
VLAN IDs 4096 with 127 reserved VRF instances Shipping 1,000, maximum 16,000
Maximum ECMP paths 64 Maximum port channels 512
Maximum links in a port Channel 32 Active SPAN sessions 4
RPVST VLAN instances 3967 HSRP groups 490
NAT entries 1023 MST instances 64
Tetration flow table size 64,000 Number of queues 8
Rack Accessory Kit NXK-ACC-KIT-1RU Rack Accessory Kit NXK-ACC-KIT-1RU

Quality Certifications

Customer Reviews

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    Raj Ruiz
    Posted on 22/02/2026
    Verified Buyer
    5.0

    QA approved the product on the first review.

    Joseph Robinson
    Posted on 21/02/2026
    Verified Buyer
    5.0

    Second order this quarter. Layer23 is our go-to now.

    Kayla Brooks
    Posted on 08/12/2025
    Verified Buyer
    5.0

    Pre-sales was patient with our back-and-forth. No pressure.

Questions & Answers

  • Does N9K-C93180YC-EX run in NX-OS mode or ACI mode?

    N9K-C93180YC-EX runs in both NX-OS mode and ACI mode. NX-OS mode needs NXOS-703I4.2 or later, and ACI mode needs ACI-N9KDK9-11.3 or later, where the switch works as a leaf in a Cisco ACI fabric. In a standalone data center the switch runs NX-OS.
  • Which fans and power supplies set the airflow direction of N9K-C93180YC-EX?

    N9K-C93180YC-EX takes four NXA-FAN-30CFM-B fans for port-side intake or four NXA-FAN-30CFM-F fans for port-side exhaust. Supplies must face the same direction: NXA-PAC-650W-PI or NXA-PDC-930W-PI for intake, NXA-PAC-650W-PE or NXA-PDC-930W-PE for exhaust. N9K-PUV-1200W follows the other modules.
  • What per-port power limit applies to optics beside an SFP-10G-T-X module on N9K-C93180YC-EX?

    Optical 1/10/25G modules on N9K-C93180YC-EX are limited to 1.5W per port. An SFP-10G-T-X copper module set to media-type 10g-tx draws up to 2.5W, so its four neighbouring ports must stay empty or hold passive DAC cables of up to 0.1W, per the Nexus 9300 hardware installation guide.
  • What maximum output do the power supplies for N9K-C93180YC-EX provide?

    The 650W AC supply for N9K-C93180YC-EX provides 650 W of output. The N9K-PUV-1200W HVAC/HVDC supply provides up to 1230 W maximum output, per the hardware installation guide. Size the pair so one supply can carry the 470W maximum draw.
  • Can N9K-C93180YC-EX use NXA-PAC-500W-PI or NXA-PAC-500W-PE power supplies?

    Yes. The Nexus 9300-EX data sheet lists NXA-PAC-500W-PI and NXA-PAC-500W-PE 500W AC supplies for N9K-C93180YC-EX, with 930W DC and N9K-PUV-1200W as the other options. Pick PI or PE to match the port-side intake or exhaust fans, and use two supplies of one type.
  • How much heat does N9K-C93180YC-EX release, and how loud is it?

    N9K-C93180YC-EX is rated at 1604 BTU/hr, with an MTBF of 390,330 hours. Noise is 48.5 dBA at 40% fan speed, 64.9 dBA at 70% and 77.8 dBA at 100%. Plan rack cooling for the 1604 BTU/hr figure and keep the intake cool so the fans stay low.

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