Cisco Catalyst 9400 Series Switches are modular campus access and distribution platforms for organizations that need chassis resiliency, supervisor redundancy, high port density, PoE at scale, modular line cards, and long-lived campus infrastructure. Buyers compare Catalyst 9400 with Catalyst 9300 stacks, Catalyst 9500 fixed core switches, and legacy Catalyst 4500 replacement projects.
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12×40G QSFP+ / 4×100G QSFP28 – Catalyst 9400 Line Card
24x1GE SFP Ports – Catalyst 9400 Line Card
24×10G SFP+ Ports – Catalyst 9400 Line Card
24×1/10/25G SFP28 Ports – Catalyst 9400 Line Card
48×mGig UPOE+ 90W Ports – Catalyst 9400 Line Card
48x5G/2.5G RJ-45 – UPOE+ 90W – Catalyst 9400 Line Card
48x10G mGig RJ-45 – UPOE+ 90W – SUP-2 Required
48x1G RJ-45 – PoE+ 30W – Catalyst 9400 Line Card
48×1G SFP Ports – Catalyst 9400 Line Card
48x1G RJ-45 – Data Only – Catalyst 9400 Line Card
48x10G mGig RJ-45 – Data Only – SUP-2 Required
48x1G RJ-45 – Cisco UPOE 60W – Catalyst 9400 Line Card
Catalyst 9400 switches are used for modular campus access, distribution, and high-density wiring closet designs. They fit organizations that prefer a chassis with supervisor redundancy, modular line cards, high PoE density, centralized power, and long service life instead of many separate stackable switches.
Catalyst 9300 is a stackable fixed access switch, while Catalyst 9400 is a modular chassis platform. Choose 9300 for distributed closet stacks and 9400 when the design needs chassis resiliency, modular line cards, centralized power, higher slot density, or a Catalyst 4500-style replacement.
Catalyst 9400 is commonly offered in 4-slot, 7-slot, and 10-slot chassis families. The right chassis depends on required line-card slots, supervisor redundancy, power supply bays, port growth, rack space, cooling, and whether the site expects long-term expansion.
Yes, Catalyst 9400 is designed for high availability with supervisor redundancy on supported chassis and supervisor combinations. Buyers should confirm the chosen chassis, supervisor model, software release, and redundancy mode because supervisor selection affects uplinks, throughput, and feature capability.
Yes, Catalyst 9400 supports high-density PoE designs with suitable line cards and power supplies. The practical PoE capacity depends on chassis, power supplies, line-card mix, endpoint power draw, and redundancy requirements, so power planning is a major part of the order.
Catalyst 9400 can serve distribution and some collapsed-core roles, but many high-speed campus core designs use Catalyst 9500 or Catalyst 9600. Choose based on required 25G, 40G, 100G, or 400G uplinks, routing scale, redundancy model, and port density.
Catalyst 9400 licensing is usually based on Network Essentials or Network Advantage software levels plus the relevant subscription and support terms. The license should match routing, SD-Access, segmentation, automation, and Catalyst Center requirements.
Yes, Catalyst 9400 is commonly evaluated for Catalyst 4500 and 4500-X modernization projects. Map chassis size, supervisor capability, line cards, PoE power, uplinks, software features, cabling, and rack power before planning a replacement.
StackWise Virtual can combine two supported Catalyst 9400 chassis into one logical switching system for simplified operations and high availability. It requires compatible supervisors, software, optics or links, and a design that accounts for dual-active detection and redundancy behavior.
Verify chassis size, supervisor model, line cards, PoE requirements, power supplies, fan trays, uplink speeds, license level, software release, StackWise Virtual needs, rack power, optics, lifecycle status, and whether Catalyst 9500 or 9600 is better for core use.
Cisco Catalyst 9400 switches are Cisco’s lead modular enterprise switching platform for campus access and aggregation, where high availability and investment protection matter more than a fixed port count. Every switch in the Cisco Catalyst 9400 Series is a Cisco Catalyst 9400 modular switch built from a chassis, redundant supervisor engines, and the line cards you slot in to set the port mix — so you can grow capacity and PoE over time without replacing the system. This category covers the Cisco Catalyst 9400 line cards that define your ports and power; every unit is brand-new, factory-sealed, genuine Cisco backed by the Cisco Enhanced Limited Lifetime Warranty, with in-stock SKUs ready to ship.
The Cisco Catalyst 9400 chassis comes in 4-, 7-, and 10-slot models (C9404R, C9407R, C9410R). Each system pairs one or two Cisco Catalyst 9400 supervisor engines — dual supervisors give true in-chassis redundancy and high availability — with the line cards below, plus redundant power supplies. The supervisor provides the high-speed uplinks (up to 100G), while line cards provide the access ports. Cisco Catalyst 9400 StackWise Virtual lets you pair two chassis into a single logical switch for resiliency and higher port density. Chassis, supervisors, and power supplies are ordered alongside the line cards — send us your build and we will assemble the full bill of materials.
Catalyst 9400 line cards set the port mix and power of the switch. Choose a Cisco Catalyst 9400 48 port line card for density: a Cisco Catalyst 9400 PoE+ line card, a Cisco Catalyst 9400 UPOE line card (60W), or a Cisco Catalyst 9400 UPOE+ line card (90W) to turn the platform into a high-density Cisco Catalyst 9400 PoE switch. Add a Cisco Catalyst 9400 multigigabit line card for Wi-Fi 6E/7 access, or SFP/SFP+/QSFP cards for 10G, 25G, 40G, and 100G fiber.
| Line card | Configuration |
|---|---|
| C9400-LC-48U | 48-port UPOE (60W) 10/100/1000 copper |
| C9400-LC-48P | 48-port PoE+ 10/100/1000 copper |
| C9400-LC-48T | 48-port data-only 10/100/1000 copper |
| C9400-LC-48H | 48-port 90W UPOE+ 10/100/1000 copper |
| C9400-LC-48HN | 48-port 90W UPOE+ 5G multigigabit copper |
| C9400-LC-48HX | 48-port 90W UPOE+ 10G multigigabit copper |
| C9400-LC-48TX | 48-port 10G multigigabit, data-only copper |
| C9400-LC-48UX | 48-port UPOE: 24× 10G multigigabit + 24× 1G copper |
| C9400-LC-48S | 48-port 1 Gigabit SFP fiber |
| C9400-LC-48XS | 48-port 10 Gigabit SFP+ fiber |
| C9400-LC-24S | 24-port 1 Gigabit SFP fiber |
| C9400-LC-24XS | 24-port 10 Gigabit SFP+ fiber |
| C9400-LC-24XY | 20-port 25G (SFP28) + 4-port 10G (SFP+) fiber |
| C9400-LC-12QC | 12-port 40G (QSFP+) or 4-port 100G (QSFP28) + 4-port 40G |
For copper access that powers phones, cameras, and access points, pick a PoE+ (48P), UPOE (48U), or 90W UPOE+ (48H/48HN/48HX) card. For data-only copper, use 48T (1G) or 48TX (10G multigigabit). For fiber access and aggregation, use the SFP cards (24S, 48S), 10G SFP+ cards (24XS, 48XS), the 25G 24XY, or the 40G/100G 12QC. If you tell us the port count, media, and PoE budget per slot, we will confirm the line cards, supervisor, chassis, and power supplies that fit.
Every new Cisco Catalyst 9400 switch and line card listed here is genuine, factory-sealed, and covered by Cisco’s Enhanced Limited Lifetime Warranty. To get a Cisco Catalyst 9400 switch in stock, add the line cards you need to a quote, or send your target chassis size, supervisor, line cards, and PoE budget — our CCIE team will confirm availability, lead time, redundancy options, and pricing. Get free help from our CCIE experts and we will reply with stock status and a complete bill of materials.
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