C9300LM-24U-4Y-A – 24x1G UPOE Ports – Fixed 4x25G Uplinks – 420W PoE Budget
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Cisco C9300LM-24U-4Y-A Compatible Accessories, Modules & Spare Parts
Find compatible network modules, power supplies, fans, optics, cables and spare parts for the Cisco C9300LM-24U-4Y-A. These accessories support fiber connectivity, hardware replacement, spare inventory and network maintenance projects.
Optics & Cables Compatible with Cisco C9300LM-24U-4Y-A
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SFP-10G-SR
10GBASE-SR SFP+ - 850nm MMF - 400m OM4Original price was: $2,658.11.$71.68Current price is: $71.68. Condition: New Factory Sealed -
SFP-10G-LR
10GBASE-LR SFP+ - 1310nm SMF - 10km ReachOriginal price was: $10,672.47.$170.00Current price is: $170.00. Condition: New Factory Sealed -
SFP-25G-SR-S
25GBASE-SR SFP28 - 850nm MMF - 100m OM4Original price was: $2,658.11.$314.00Current price is: $314.00. Condition: New Factory Sealed -
SFP-25G-SL
25GBASE-SR/SL SFP28 - 850nm 30m MMF TransceiverOriginal price was: $1,588.80.$450.00Current price is: $450.00. Condition: New Factory Sealed -
SFP-10/25G-CSR-S
10/25GBASE-CSR SFP28 - 850nm 400m MMF TransceiverOriginal price was: $2,925.26.$95.30Current price is: $95.30. Condition: New Factory Sealed -
SFP-10/25G-LR-S
10/25GBASE-LR SFP28 - 1310nm 10km SMF TransceiverOriginal price was: $5,877.20.$333.50Current price is: $333.50. Condition: New Factory Sealed -
SFP-10/25G-LR-I
10/25GBASE-LR SFP28 - Industrial Temp 1310nm 10km SMFOriginal price was: $6,812.22.$518.00Current price is: $518.00. Condition: New Factory Sealed -
SFP-25G-ER-I
25GBASE-ER SFP28 - 40km SMF - Industrial TempOriginal price was: $28,050.28.$6,520.00Current price is: $6,520.00. Condition: New Factory Sealed -
GLC-LH-SMD
1000BASE-LX/LH SFP - 10km SMF / 550m MMF - DOMOriginal price was: $2,658.11.$95.80Current price is: $95.80. Condition: New Factory Sealed -
GLC-SX-MMD
1000BASE-SX SFP - MMF 850nm - DOMOriginal price was: $1,335.73.$57.00Current price is: $57.00. Condition: New Factory Sealed
Power Supplies & Fans Compatible with Cisco C9300LM-24U-4Y-A
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PWR-C6-1KWAC
1KW AC PSU - Catalyst 9200 48-Port PoE SwitchesOriginal price was: $2,495.33.$467.00Current price is: $467.00. Condition: New Factory Sealed -
PWR-C6-600WAC
600W AC PSU - Catalyst 9200 PoE ModelsOriginal price was: $1,693.00.$582.00Current price is: $582.00. Condition: New Factory Sealed
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C9300LM-24U-4Y-A Description
The C9300LM-24U-4Y-A is a Cisco Catalyst 9300LM mini fixed-uplink access switch built on a reduced-depth chassis, carrying 24 Cisco UPOE copper ports and 4x 25G SFP28 fixed uplinks under a Network Advantage license. Cisco positions the 9300LM sub-line as the shallow-chassis member of the Catalyst 9300 family, using its own PWR-C6 power series rather than the PWR-C1 supplies shared by the modular-uplink C9300 and C9300X platforms, which keeps second-supply and spare-parts planning specific to this hardware line. The default PWR-C6-600WAC supply delivers a 420W PoE budget without a second supply, extending to 1420W once a PWR-C6-1KWAC secondary supply is added. Network Advantage carries this SKU's full routing, segmentation, automation, and MACsec-256 entitlement set, and the switch stacks over StackWise-320 with other Catalyst 9300L or 9300LM members at a matching license tier.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9300LM-24U-4Y-A |
|
Product type |
Stackable mini access switch with fixed uplinks |
|
Access ports |
24 x 10/100/1000 Mbps Cisco UPOE copper ports |
|
Fixed uplinks |
4 x 25G SFP28 |
|
Network license |
Network Advantage |
|
Default power supply |
PWR-C6-600WAC |
|
Default PoE budget |
420W |
|
Expanded PoE budget |
Up to 1440W with PWR-C6-1KWAC primary or secondary supply |
|
Stacking architecture |
StackWise-320 (mixes with Catalyst 9300L at matching license tier) |
|
Chassis depth |
13.03 in chassis only; low-depth mini form factor |
|
Switching and forwarding |
248 Gbps standalone switching; 184.51 Mpps standalone forwarding |
|
Weight |
11.5 lb (5.21 kg) |
Product Performance
Key Features
The 13.03 in chassis-only depth on the Catalyst 9300LM line lets this switch fit shallow racks and enclosures that reject full-depth Catalyst 9300 hardware.
Power sparing and second-supply orders stay inside the PWR-C6-600WAC/PWR-C6-1KWAC pair, since C9300LM cannot accept any PWR-C1 supply used on the rest of the Catalyst 9300 family.
The default PWR-C6-600WAC supply budgets 420W of Cisco UPOE power without a second supply, enough to plan a closet of standard PoE+ endpoints before secondary-power decisions matter.
Network Advantage on this SKU carries advanced routing (BGP, EIGRP, IS-IS, unlimited-route OSPF), segmentation (VRF, VXLAN, Cisco TrustSec, MPLS), automation (NETCONF, RESTCONF, YANG, ZTP), and MACsec-256, beyond the Layer 2 and limited-route feature set on Network Essentials.
StackWise-320 stacking lets this switch join other Catalyst 9300L or 9300LM members at a matching license tier, keeping the mini and standard fixed-uplink lines on one stack ring.
The Catalyst 9300LM fixed-uplink mini chassis does not support Cisco StackPower shared-power stacking or hardware-accelerated IPsec encryption, so stack power planning on this line stays per-unit and an encrypted-uplink requirement cannot rely on onboard hardware acceleration here.
Application Scenarios
Deployed in shallow floor-mounted enclosures or wall-mount cabinets that cannot fit full-depth Catalyst 9300 chassis, delivering UPOE-powered access without giving up rack depth.
Installed at edge or branch access layers that require VRF, VXLAN, or Cisco TrustSec segmentation on a fixed-uplink hardware profile rather than the modular-uplink Catalyst 9300 line.
Added as a member alongside Catalyst 9300L switches in a shared StackWise-320 ring where the design already standardizes on Network Advantage across the fixed-uplink stack.
Product Comparison
|
Parameter |
C9300LM-24U-4Y-A | ||
|---|---|---|---|
|
Access ports |
24 x 10/100/1000 Mbps Cisco UPOE |
24 x 10/100/1000 Mbps Cisco UPOE |
24 x UPOE (8 Multigigabit + 16 x 10/100/1000 Mbps) |
|
Fixed uplinks |
4 x 25G SFP28 |
4 x 25G SFP28 |
4 x 10G/1G SFP+ |
|
Network license |
Network Advantage |
Network Essentials |
Network Advantage |
|
Chassis depth class |
Mini (low-depth) |
Mini (low-depth) |
Standard Catalyst 9300L depth |
|
Default power supply |
PWR-C6-600WAC |
PWR-C6-600WAC |
PWR-C1-1100WAC-P |
|
Default PoE budget |
420W |
420W |
880W |
|
Expanded PoE budget |
Up to 1440W with PWR-C6-1KWAC supply |
Up to 1440W with PWR-C6-1KWAC supply |
Up to 1440W with second 1100W supply |
|
Stacking architecture |
StackWise-320 |
StackWise-320 |
StackWise-320 |
|
Switching capacity |
248 Gbps standalone; 568 Gbps stacked |
248 Gbps standalone; 568 Gbps stacked |
272 Gbps standalone; 592 Gbps stacked |
|
Forwarding rate |
184.51 Mpps standalone; 422.59 Mpps stacked |
184.51 Mpps standalone; 422.59 Mpps stacked |
202.38 Mpps standalone; 440.47 Mpps stacked |
- Choosing C9300LM-24U-4Y-A over C9300LM-24U-4Y-E is a pure license-tier decision on identical hardware: both share the 420W default PoE budget, the 4x 25G fixed uplinks, and the 248 Gbps switching capacity, so a design that never needs VRF, VXLAN, Cisco TrustSec, or MACsec-256 can drop to the Network Essentials SKU and keep every port and power number unchanged.
- Against C9300L-24UXG-4X-A, the mini chassis trades PoE headroom and Multigigabit access for rack depth: the C9300L-24UXG-4X-A default supply budgets 880W against this SKU’s 420W and adds 8 Multigigabit ports, so a design that needs higher per-port PoE draw or Multigigabit uplinks to endpoints should size the C9300L-24UXG-4X-A instead of assuming the mini chassis can absorb that load.
- For deciding which SKU to order in this group, settle the chassis depth constraint first, since only the C9300LM line fits shallow enclosures; once depth is fixed, license tier is the only variable left between C9300LM-24U-4Y-A and C9300LM-24U-4Y-E, because their port count, uplinks, and power budget do not separate them.
Selection Guide
1. When Advantage Segmentation Is Required
C9300LM-24U-4Y-A carries Network Advantage, so a design that needs VRF, VXLAN, Cisco TrustSec, or MACsec-256 on the mini fixed-uplink hardware should stay on this SKU rather than the Network Essentials C9300LM-24U-4Y-E, which drops those entitlements on identical hardware.
2. Downgrading When Segmentation Is Unused
When the deployment only needs Layer 2 switching, basic routed access, or PIM stub multicast, moving to C9300LM-24U-4Y-E keeps the same 420W PoE budget, 4x 25G uplinks, and 248 Gbps switching capacity while removing the Network Advantage cost premium.
3. Chassis Depth Before License Tier
The mini chassis fits shallow installs where C9300L-24UXG-4X-A does not, but it caps the default PoE budget at 420W against the C9300L-24UXG-4X-A’s 880W; a higher-draw Multigigabit access plan needs the deeper hardware regardless of license tier, while a shallow-rack site with lighter PoE draw fits this SKU.
4. No In-Place License Upgrade Path
Cisco’s ordering structure ties Network Essentials and Network Advantage to separate orderable PIDs on this hardware; the ordering guide does not list an in-place upgrade PID from C9300LM-24U-4Y-E to C9300LM-24U-4Y-A, so a design that may need Advantage features later should order this Advantage SKU up front rather than plan a field license swap.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
Default PoE budget |
420W available with the single default PWR-C6-600WAC supply |
|
Expanded PoE budget |
Up to 1420W when a PWR-C6-1KWAC secondary supply is added, or 820W-1440W when PWR-C6-1KWAC replaces the primary supply |
|
Design ceiling |
PoE budget is capped at 1440W, matching 24 ports at the 60W UPOE class |
|
Power supply compatibility |
Confirm only PWR-C6-600WAC or PWR-C6-1KWAC is specified; no PWR-C1 supply is compatible with this chassis |
|
Peak power draw |
990.9W measured at 100% PoE load on 115Vac |
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
License suffix |
Confirm the order specifies C9300LM-24U-4Y-A and not the C9300LM-24U-4Y-E Essentials PID. |
Ordering the wrong suffix delivers the same hardware without the Network Advantage entitlements the design may depend on. |
|
Power supply family |
Confirm only PWR-C6-600WAC or PWR-C6-1KWAC appears on the bill of materials. |
PWR-C1 supplies used elsewhere in the Catalyst 9300 family are not compatible with this chassis. |
|
Second power bay |
Confirm a blank module or a second PWR-C6 supply is specified for the empty bay. |
An empty bay without a blank module can affect airflow and fan noise levels. |
|
Smart Account binding |
Confirm the target Smart Account and Virtual Account before the order is placed. |
The Network Stack license and software subscription are tied to Smart Licensing and cannot activate without a bound account. |
|
Software subscription term |
Confirm the Cisco Catalyst, Cisco DNA, or Meraki subscription term matches the Network Advantage tier. |
A mismatched subscription tier can block full feature activation even when the hardware license is correct. |
|
Stack partner license tier |
Confirm any Catalyst 9300L stack partner also runs Network Advantage. |
StackWise-320 mixing between C9300L and C9300LM requires a matching license tier across members. |
Optional Add-ons
|
Model |
Description |
|---|---|
|
Cisco 600W AC power supply spare for Catalyst 9300LM | |
|
Cisco 1000W AC power supply spare for Catalyst 9300LM | |
|
C9300L-STACK-KIT2 |
StackWise-320 stacking kit required for Catalyst 9300LM stacking |
|
50cm Type 3A stacking cable for Catalyst 9300LM/9300L stack kits | |
|
1m Type 3A stacking cable for Catalyst 9300LM/9300L stack kits | |
|
3m Type 3A stacking cable for Catalyst 9300LM/9300L stack kits |
C9300LM-24U-4Y-A Switch Rear Panel
The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.
Components Delivered in the Shipping Box
The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9300LM-24U-4Y-A | Product type | Stackable mini access switch with fixed uplinks |
| Network license | Network Advantage | Access ports | 24 x 10/100/1000 Mbps Cisco UPOE copper ports |
| Fixed uplinks | 4 x 25G SFP28 | Chassis depth class | Mini (low-depth) Catalyst 9300LM chassis |
| Default power supply | PWR-C6-600WAC | Default PoE budget | 420W |
| Expanded PoE budget | Up to 1440W with PWR-C6-1KWAC as primary or secondary supply | PWR-C6-600WAC electrical rating | 100-240VAC auto-ranging, 7-2.8A input, 54V @ 11.1A output |
| PWR-C6-1KWAC electrical rating | 100-240VAC auto-ranging, 12-6A input, 54V @ 18.5A output | Power supply BTU (600WAC) | 2327 BTU/hr input, 2047.3 BTU/hr output at 100VAC |
| Power supply BTU (1KWAC) | 3876 BTU/hr input, 3412 BTU/hr output at 100VAC | Peak power draw | 990.9W at 100% PoE load, 115Vac |
| Power supply slots | Two internal bays; blank module required in an unused bay | Power supply compatibility | PWR-C6 series only; not compatible with any PWR-C1 supply |
| Fan modules | Three internal field-replaceable fans with N+1 redundancy | Fan airflow | 20 cfm per fan module |
| Stacking architecture | StackWise-320 via C9300L-STACK-KIT2, up to 8 members | Stack mixing | Mixes with Catalyst 9300L members at matching license tier |
| StackPower | Not supported | Hardware IPsec | Not supported |
| Switching capacity | 248 Gbps standalone | Switching capacity with stacking | 568 Gbps |
| Forwarding rate | 184.51 Mpps standalone | Forwarding rate with stacking | 422.59 Mpps |
| Management interfaces | 10/100/1000 Ethernet management port, RJ-45 console, USB mini-Type B console | Asset tracking | Passive UHF RFID tag (GS1 EPC Global Gen2 / ISO 18000-6C) |
| Physical dimensions (chassis only) | 1.73 x 17.50 x 13.03 in | Physical dimensions (with default AC supply) | 1.73 x 17.50 x 13.17 in |
| Weight | 11.5 lb (5.21 kg) | MTBF | 357,350 hours |
| Operating temperature | -5C to 45C below 5000 ft (1500m) | Storage temperature | -40C to 70C (-40F to 158F) |
| Operating altitude | Up to 10,000 ft (3000m) | Storage altitude | Up to 15,000 ft (4500m) |
| Relative humidity | 5%-90% non-condensing | Connector standards | RJ-45 (1000BASE-T), LC fiber (SFP28 uplinks), Cisco StackWise cable |
| Safety and EMC compliance | UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEEE 802.3, 47 CFR Part 15, EN 55032 Class A, CISPR 32 Class A, ICES-003 Class A | Environmental compliance | RoHS |
| Warranty | Cisco Enhanced Limited Lifetime Hardware Warranty (E-LLW) |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
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When does C9300LM-24U-4Y-A make sense instead of the E version?
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Which devices belong on C9300LM-24U-4Y-A downlinks?
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Do the 25G uplinks on C9300LM-24U-4Y-A replace the need for a network module?
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What cabinet problem does C9300LM-24U-4Y-A solve?
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How much power planning is needed for C9300LM-24U-4Y-A?
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What StackWise detail matters on C9300LM-24U-4Y-A?
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Why can a copper SFP link on C9300LM-24U-4Y-A need extra software checking?
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What procurement boundary keeps C9300LM-24U-4Y-A from conflicting with mGig pages?
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