DS-C9148T-48PETK9 – 48x32G FC Ports – 48x32G SW Optics – Exhaust SAN Switch

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DS-C9148T-48PETK9 Description

The DS-C9148T-48PETK9 is a Cisco MDS 9148T 32G Fibre Channel switch for fully populated SAN edge racks that exhaust air at the port side. The 1RU switch has 48 SFP+ ports at 4, 8, 16 or 32 Gbps, all 48 active, with 48 Cisco 32G shortwave optics and 1.5 Tbps of aggregate bandwidth. Because every port is already active, no M9148T-PL8 upgrade license is needed to reach 48 ports.

Quick Specs

Parameter

Specification

Product ID

DS-C9148T-48PETK9

Product type

32G Fibre Channel SAN switch

Form factor

1RU fixed-switch form factor

Fibre Channel ports

48 SFP+ ports base

Active ports at order

48 active FC ports

Included FC optics

48 x Cisco 32G shortwave Fibre Channel optics

Base order hardware

4 fans and 2 power supplies

Fibre Channel speed support

4, 8, 16, and 32 Gbps autosensing

Dedicated bandwidth per port

32 Gbps

Aggregate bandwidth

1.5 Tbps end-to-end full duplex

Airflow

Port-side exhaust

Product Performance

End-to-End Full-Duplex Switching Bandwidth
Dedicated Bandwidth per Fibre Channel Port
Day-One Active Fibre Channel Port Count

Key Features

All 48 Ports Active

The full 48-port count is usable at delivery. No port-activation licensing sits between the switch and a completely cabled rack.

A 32G Shortwave Optic On Every Port

Forty-eight Cisco 32G shortwave optics are included. At 32 Gbps they reach 70 m over OM3 and 100 m over OM4 or OM5 fiber.

Port-Side Exhaust Airflow

Air moves from the back of the chassis toward the ports. Fan modules and power supplies of the exhaust type keep that direction when parts are replaced.

Dedicated Bandwidth And Port Groups

Every port has 32 Gbps of dedicated bandwidth, and the three groups of 16 ports share up to 8,300 buffer credits each, 1.5 Tbps in aggregate.

Power Draw With A Full Optic Set

Two 650W AC supplies power the switch. A typical 297W is drawn with 48 32G shortwave optics fitted, against 217W idle with no optics.

Optional Software Packages

The Enterprise Package and the SAN Insights Package are separate licenses. The switch runs Cisco MDS NX-OS 8.3(1) or later with Cisco DCNM 11(0) or later.

Application Scenarios

Full-Density Server Rack

A rack of dual-attached servers can use all 48 ports from the first day, with the included 32G shortwave optics running over multimode fiber to the hosts and arrays.

Edge Switch With ISL Uplinks

As the edge of a larger fabric, the switch sends inter-switch links toward the core in port channels of up to 16 links, so a failed member does not take the connection down.

Hot-Aisle Port Side

In a rack where the port side faces the hot aisle, the port-side exhaust fans move air from the back of the chassis toward the ports.

Product Comparison

Parameter

DS-C9148T-48PETK9

DS-C9148T-48PITK9

DS-C9148T-24PETK9

DS-C9148T-24PITK9

Fibre Channel ports

48 SFP+ ports

48 SFP+ ports

48 SFP+ ports

48 SFP+ ports

Active ports

48

48

24

24

Fibre Channel speed

4/8/16/32 Gbps autosensing

4/8/16/32 Gbps autosensing

4/8/16/32 Gbps autosensing

4/8/16/32 Gbps autosensing

Aggregate bandwidth

1.5 Tbps full duplex

1.5 Tbps full duplex

1.5 Tbps full duplex

1.5 Tbps full duplex

Buffer credits

Up to 8,300 per port group

Up to 8,300 per port group

Up to 8,300 per port group

Up to 8,300 per port group

Airflow

Port-side exhaust

Port-side intake

Port-side exhaust

Port-side intake

Included optics

48 x 32G SW

48 x 32G SW

24 x 32G SW

24 x 32G SW

Port upgrade license

Not applicable

Not applicable

M9148T-PL8 8-port activation

M9148T-PL8 8-port activation

Minimum NX-OS release

Cisco MDS NX-OS 8.3(1) or later

Cisco MDS NX-OS 8.3(1) or later

Cisco MDS NX-OS 8.3(1) or later

Cisco MDS NX-OS 8.3(1) or later

DS-C9148T-48PETK9 and DS-C9148T-48PITK9 both ship 48 active ports and 48 included 32G SW optics and differ only in airflow: DS-C9148T-48PETK9 is port-side exhaust and DS-C9148T-48PITK9 is port-side intake, which racks built for intake airflow need. A first deployment that needs only 24 active ports and 24 optics can start on DS-C9148T-24PETK9 (exhaust) or DS-C9148T-24PITK9 (intake) and reach 32, 40 or 48 active ports later with M9148T-PL8 licenses, 8 ports at a time. All four bundles list Cisco MDS NX-OS 8.3(1) or later.

Ordering Checklist

  • Airflow of spares: Order replacement PSU DS-CAC-650W-E= and fan module DS-C32S-FAN-E= to match the port-side exhaust airflow. Intake and exhaust PSU and fan PIDs are separate parts, and a mismatched part reverses the airflow of the chassis.
  • Power cords: Select a region cord from the CAB-9K10A-* series, CAB-9K12A-NA or CAB-250V-10A-BR, or a CAB-C15-CBN cabinet jumper. The two 650W AC supplies need cords that fit the site’s outlet or cabinet PDU.
  • Optional software: Add Enterprise Package M9100ENT1K9= or SAN Insights Package L-D-M91S-AXK9= if the fabric needs them. These packages are listed as separate Table 2 licenses and are not part of the bundle PID.

Optional Add-ons

Model

Description

DS-CAC-650W-E=

AC PSU port-side exhaust spare for MDS 9148T

DS-C32S-FAN-E=

MDS 9148T fan module port-side exhaust spare

DS-SFP-FC32G-SW

Cisco 32G FC shortwave optic

DS-SFP-FC32G-LW=*

Cisco 32G FC longwave optic

DS-SFP-FC16G-SW

Cisco 16G FC shortwave optic

DS-SFP-FC8G-SW

Cisco 8G FC shortwave optic

DS-9148T-KIT-CSCO

MDS 9148T accessory kit for Cisco

Front View

1

Serial console port

7

Activity status LED

2

System status LED

8

Ethernet management ports (2)

3

Power status LED

9

Fixed FC ports

4

Fan status LED

10

FC port status LEDs (48)

5

USB port

11

Airflow grill

6

Link status LED

Rear View

1

Power supply failure status LED

6

Power supply status LED

2

Power supply unit fan

7

Power supply units (2 units)

3

Power supply unit handle

8

Chassis fan modules (4 units)

4

Unswitched power receptacle

9

Chassis fan module release latches (8)

5

Power supply unit latch release

1

Power supply unit slot 1

4

Chassis fan module slot 3

2

Chassis fan module slot 1

5

Chassis fan module slot 4

3

Chassis fan module slot 2

6

Power supply unit slot 2

Specifications

Parameter Specification Parameter Specification
Product ID DS-C9148T-48PETK9 Product compatibility Cisco MDS 9000 Family
Product type 32G Fibre Channel SAN switch Order configuration 48 active FC ports, 48 x 32G SW optics, 4 fans, 2 power supplies, port-side exhaust airflow
Rack units 1RU fixed-switch form factor Fibre Channel ports 48 SFP+ ports base
Active ports at order 48 active FC ports Included FC optics 48 x Cisco 32G shortwave Fibre Channel optics
Fibre Channel speed support 4, 8, 16, and 32 Gbps autosensing Dedicated bandwidth per port 32 Gbps
Switching capacity 1.5 Tbps end-to-end full duplex Port groups 3 port groups of 16 ports each
Buffer credits Up to 8300 for a group of 16 ports, 500 default per port, 8270 maximum for a single port in the group Port channel support Up to 16 load-balanced physical links in one port channel
Fibre Channel port types E, F, B, SD, ST, NP, and TE FC-NVMe support FC-NVMe listed in protocol support
Fabric services Name server, RSCN, login services, FCS, broadcast, and in-order delivery Advanced functions VSAN, NPV, IVR, port channel with multipath load balancing, and flow- and zone-based QoS
Security functions VSAN isolation, hardware zoning ACLs, FC-SP, RBAC, SFTP, SSHv2, SNMPv3, control-plane security, TrustSec payload encryption, secure boot, and anti-counterfeit technology Diagnostics POST, OHMS, internal loopbacks, SPAN, Fibre Channel traceroute, Fibre Channel ping, Fibre Channel debug, Cisco Fabric Analyzer, syslog, port-level statistics, link diagnostics, and read diagnostic parameter
High availability components Hot-swappable dual redundant power supplies, hot-swappable fan module, and hot-swappable SFP+ optics Management port mgmt0 10/100/1000BASE-T and mgmt1 1/10G SFP+ port
Console port RS-232 serial console port USB port USB power-on auto-provision port
Programmability NX-API RESTful interfaces, onboard Python interpreter, Cisco DCNM web services API, EEM, and NX-OS scheduler Minimum NX-OS release Cisco MDS NX-OS 8.3(1) or later
Minimum Cisco DCNM release Cisco DCNM 11(0) or later Default power supply DS-CAC-650W-E 650W AC port-side exhaust power supply; two supplies in the order configuration
AC input voltage 100 to 240 VAC, 10 percent range AC input frequency 50 to 60 Hz nominal
Typical power without optics 217W for idle 48-port switch without optics modules Typical power with 48 optics 297W for 48-port switch with 48 32G SW optics under typical conditions
Airflow Back to front toward ports using port-side exhaust fans Airflow rate with system fan assembly 50 CFM through system fan assembly at 77F (25C)
Airflow rate 100 CFM maximum Dimensions 1.72 x 17.3 x 22.3 in. (4.37 x 43.94 x 56.64 cm), excluding PSU and fan module handles
Operating temperature 32 to 104F (0 to 40C) Operating humidity 10 to 90 percent noncondensing
Operating altitude -197 to 6500 ft (-60 to 2000 m) Supported FC optics 32G SW, 32G LW, 16G SW, 16G LW, 8G SW, and 8G LW optics listed
Included accessory kit Cisco-specific MDS 9148T accessory kit shipped as standard

Quality Certifications

Customer Reviews

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    Roy Morris
    Posted on 20/02/2026
    Verified Buyer
    4.0

    We hold Layer23 to a high standard, and they meet it every time. Minor delay in delivery, but everything was in order.

    Donna Johnson
    Posted on 17/02/2026
    Verified Buyer
    5.0

    Layer23 is exactly the kind of vendor B2B buyers hope to find.

    Justin Miller
    Posted on 08/02/2026
    Verified Buyer
    5.0

    Finance approved on the first round of review. The pricing spoke for itself.

    Tarkin
    Posted on 22/08/2024
    Verified Buyer
    5.0

    You may fire when ready. Data transfer rates are exceptional.

    Wedge Antilles
    Posted on 15/05/2024
    Verified Buyer
    5.0

    Look at the size of that thing! Well, it’s actually 1U, but it’s powerful.

Questions & Answers

  • How many ports are active on DS-C9148T-48PETK9 at order?

    All 48 SFP+ ports on DS-C9148T-48PETK9 are active at delivery. The full 48-port count is usable at once, and no M9148T-PL8 upgrade license is needed, so no port-activation licensing sits between the switch and a completely cabled rack.
  • Which Fibre Channel speeds does DS-C9148T-48PETK9 support?

    DS-C9148T-48PETK9 supports 4, 8, 16 and 32 Gbps autosensing, with 32 Gbps of dedicated bandwidth per port. At 32 Gbps the 48 included shortwave optics reach 70 m over OM3 and 100 m over OM4 or OM5.
  • Which management ports does DS-C9148T-48PETK9 have?

    DS-C9148T-48PETK9 has an mgmt0 10/100/1000BASE-T port and an mgmt1 1/10G SFP+ port. It also has an RS-232 serial console port and a USB power-on auto-provision port. Cable the mgmt0 port to the out-of-band management network for remote access.
  • How many links can one port channel on DS-C9148T-48PETK9 hold?

    One port channel on DS-C9148T-48PETK9 holds up to 16 load-balanced physical links. The standard Fibre Channel port types are E, F and B, and the enhanced port types are SD, ST, NP and TE. A port channel bundles links between two switches into one logical link, so traffic keeps flowing if one member link drops.
  • How deep is DS-C9148T-48PETK9 in a rack?

    DS-C9148T-48PETK9 measures 1.72 x 17.3 x 22.3 in. (4.37 x 43.94 x 56.64 cm), excluding power supply and fan module handles. The depth sets the minimum rack depth, and fiber cabling at the port side needs extra room beyond it.
  • What operating range does DS-C9148T-48PETK9 support for temperature and altitude?

    DS-C9148T-48PETK9 operates at 32 to 104F (0 to 40C), at 10 to 90 percent noncondensing humidity, and at altitudes from -197 to 6500 ft (-60 to 2000 m). A fully optic-populated switch should be checked against the hot-aisle temperature of the cabinet.

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DataSheet Downloads

  • DS-C9148T-48PETK9 Datasheet