C9404R – 2 Line Card Slots – Up To 96 Access Ports – 4320W PoE Budget Per Slot
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C9404R Description
The C9404R is the Cisco Catalyst 9400 Series 4 slot chassis, the smallest modular member of the family and the platform buyers reach for when a modular access or collapsed-core switch has to fit a shallow, shared cabinet. Four physical slots are split into two dedicated supervisor engine slots and two line-card slots, giving 1+1 supervisor redundancy with NSF/SSO and sub-200 msec ISSU upgrades while still leaving room for up to 96 access ports of 1G copper, 1G fiber, 10G fiber or multigigabit. Bandwidth per line-card slot tracks the installed supervisor engine and reaches 480 Gbps with C9400X-SUP-2XL, 240 Gbps with C9400X-SUP-2, C9400-SUP-1XL or C9400-SUP-1XL-Y, and 80 Gbps with C9400-SUP-1; because Catalyst 9400 line cards are functionally transparent and let all packet processing, queuing and QoS run on the supervisor, the same cards carry forward across supervisor generations. Four power supply bays accept the 3200W AC, 2100W AC and 3200W DC modules in redundant N+N, redundant N+1 or combined mode, integrated PoE reaches 4320W per line-card slot with current shipping line cards, and the chassis occupies 6 RU at 39.0 lb (17.2 kg) with its C9404-FAN dual serviceable fan tray installed.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9404R |
|
Chassis slots |
4 total, 2 line-card slots and 2 dedicated supervisor engine slots |
|
Slot assignment |
Supervisor engines in slots 2 or 3, line cards in slots 1 and 4 |
|
Supervisor engines supported |
C9400-SUP-1, C9400-SUP-1XL, C9400-SUP-1XL-Y, C9400X-SUP-2, C9400X-SUP-2XL |
|
Bandwidth per line-card slot |
480 Gbps with C9400X-SUP-2XL, 240 Gbps with C9400X-SUP-2, C9400-SUP-1XL and C9400-SUP-1XL-Y, 80 Gbps with C9400-SUP-1 |
|
Maximum access ports |
96 ports of 1G copper, 1G SFP, 10G SFP+, 5G multigigabit or 10G multigigabit |
|
Maximum high-speed ports |
48x 25G SFP28, 24x 40G QSFP+ or 8x 100G QSFP28, all requiring C9400X-SUP-2 or C9400X-SUP-2XL |
|
PoE power budget per line-card slot |
4320W with current shipping line cards |
|
Maximum PoE capability per slot |
Approximately 4800W chassis capability |
|
Power supply bays |
4 bays accepting C9400-PWR-3200ACT, C9400-PWR-3200AC, C9400-PWR-2100AC or C9400-PWR-3200DC |
|
Fan tray |
One bay with the C9404-FAN dual serviceable tray |
|
Rack units |
6 RU, 19-in rack mount from the front |
|
Minimum software release |
Cisco IOS XE 16.9.1 with C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y, Cisco IOS XE 17.7.1 with C9400X-SUP-2 or C9400X-SUP-2XL |
Product Performance
Key Features
Only slots 1 and 4 take line cards, so the port count is capped at 96 access ports regardless of which supervisor is fitted; sizing a closet above that number moves the design to a larger chassis rather than a bigger supervisor.
C9400-SUP-1XL and C9400-SUP-1XL-Y deliver 240 Gbps per line-card slot in this chassis, the same figure C9400X-SUP-2 produces, so a 240 Gbps design can be built on the older supervisor class without the oversubscription penalty that appears in the taller chassis.
Four power supply bays feed only two line cards, which leaves room to run N+N redundancy on two supplies while keeping two bays free, or to reach combined mode headroom for a fully loaded UPOE+ line card without contending with additional cards.
Slots 2 and 3 accept supervisor engines only and line cards are not supported there, so a single-supervisor build leaves one slot idle rather than converting it to extra port capacity.
The chassis occupies 6 RU at 10.47 x 17.30 x 16.30 in. and mounts to a 19-in rack from the front with rack and cable guide hardware included, so it drops into shallow cabinets that cannot take the 10 RU or 13 RU members of the family.
The chassis runs from Cisco IOS XE 16.9.1 with the C9400-SUP-1 supervisor class but requires Cisco IOS XE 17.7.1 once C9400X-SUP-2 or C9400X-SUP-2XL is installed, which sets the minimum image for any estate mixing supervisor generations on a common software train.
Application Scenarios
Installed as a collapsed core in single-building or small multi-tenant campuses, terminating up to 96 fiber or copper distribution links on two line cards while a redundant supervisor pair carries the routing.
Racked in 6 RU wiring cabinets and shared communications rooms where depth and height are constrained, including sites that also house non-network equipment in the same enclosure.
Deployed at large branch or remote-site aggregation points that require dual supervisor engines and multiple power feeds, operating across a -5 to +45 degrees C ambient range up to 6,000 feet.
Product Comparison
|
Parameter |
C9404R |
C9407R |
C9410R |
|---|---|---|---|
|
Chassis slots |
4 total, 2 line-card slots |
7 total, 5 line-card slots |
10 total, 8 line-card slots |
|
Bandwidth per slot with C9400-SUP-1XL |
240 Gbps |
120 Gbps |
80 Gbps |
|
Maximum access ports |
96 |
240 |
384 |
|
Maximum 100G QSFP28 ports |
8 |
20 |
32 |
|
Power supply bays |
4 |
8 |
8 |
|
Rack units |
6 RU |
10 RU |
13 RU |
|
Chassis weight with fan tray |
39.0 lb (17.2 kg) |
63.0 lb (28.58 kg) |
65.0 lb (29.48 kg) |
|
Fan tray part number |
C9404-FAN= |
C9407-FAN= |
C9410-FAN= |
|
Shelf install kit |
Not listed for the 4 slot chassis |
C9407-SHELF-KIT= |
C9410-SHELF-KIT= |
|
Rated MTBF |
2,077,070 hours |
1,571,010 hours |
1,404,840 hours |
- The supervisor class a site already owns decides more than slot count here: C9404R is the only chassis in the group where C9400-SUP-1XL still yields 240 Gbps per line-card slot, while the same supervisor drops to 120 Gbps in C9407R and 80 Gbps in C9410R, so an estate standardised on the C9400-SUP-1 supervisor class buys full-rate slots on the small chassis and buys oversubscription on the large ones.
- Access-port headroom is the reason to step up rather than a bonus: 96 ports on C9404R against 240 on C9407R and 384 on C9410R means a closet that will cross roughly one hundred endpoints is paying twice if it starts here, since the line cards move but the chassis, fan tray and rack kit do not.
- Chassis-specific accessories block sideways moves. Fan trays are C9404-FAN=, C9407-FAN= and C9410-FAN= respectively, and Cisco lists shelf install kits only for the 7 slot and 10 slot models, so a C9404R going into a rack without full rail support has no shelf kit line item available to it.
- For deciding which SKU to order, count the access ports the site must terminate first, then check the rack budget at 6, 10 or 13 RU, and settle the supervisor last, because the maximum 480 Gbps per slot with C9400X-SUP-2XL and the 4320W PoE per slot figure are identical across all three chassis and do not separate them.
Selection Guide
1. Two Slots Against An Idle Supervisor Bay
A single-supervisor build on C9404R commits half the chassis to a slot that cannot take a line card, so a design that will never add a standby supervisor gives up 50 percent of its slot budget; where port growth matters more than switchover time, C9407R returns five line-card slots for the same two supervisor slots.
2. Full-Rate Slots On The Older Supervisor Class
Sites already holding C9400-SUP-1XL or C9400-SUP-1XL-Y hardware reach 240 Gbps per line-card slot only in this chassis; putting the same supervisor into C9407R halves that to 120 Gbps and into C9410R cuts it to 80 Gbps, which turns a supervisor reuse plan into a supervisor refresh plan on the larger chassis.
3. The 25G And Above Ceiling Needs Supervisor 2
The 48x 25G SFP28, 24x 40G QSFP+ and 8x 100G QSFP28 densities are unavailable with the C9400-SUP-1 supervisor class, and the C9400-LC-24XY, C9400-LC-12QC, C9400-LC-48HX, C9400-LC-48TX and C9400-LC-48XS line cards each require C9400X-SUP-2 or C9400X-SUP-2XL, so any uplink plan above 10G carries a supervisor decision with it.
4. Where The Software Train Sets The Supervisor
An estate held on a Cisco IOS XE 16.9.1 baseline can run C9404R with the C9400-SUP-1 supervisor class today, but moving to C9400X-SUP-2 or C9400X-SUP-2XL lifts the floor to Cisco IOS XE 17.7.1 for this chassis; a site unable to qualify that train stays on the older supervisor and accepts its 240 Gbps per-slot ceiling.
5. Line Cards Outlive The Supervisor Choice
Because packet processing, queuing and QoS run entirely on the supervisor engine, line cards purchased for a C9400-SUP-1XL build inherit the capabilities of a later C9400X-SUP-2XL without replacement, which makes the supervisor rather than the line card inventory the natural upgrade unit on this chassis.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
PoE standards |
IEEE 802.3af and IEEE 802.3at plus the Cisco pre-standard power implementation on every Catalyst 9400 chassis and PoE power supply |
|
PoE budget per line-card slot |
4320W with current shipping line cards; the chassis is capable of approximately 4800W per slot |
|
Power supply bays |
4 bays, populated with C9400-PWR-3200ACT, C9400-PWR-3200AC, C9400-PWR-2100AC or C9400-PWR-3200DC |
|
Redundancy mode |
Redundant N+N halves usable output, redundant N+1 reserves one supply, combined mode sums all supplies against the share ratio |
|
3200W AC supply output |
55V at 58.0A on the 230VAC range and 28.36A on the 115VAC range, 20 ms holdup, 950 BTU/hr heat dissipation per unit |
|
2100W AC supply output |
55V at 38.21A on the 230VAC range and 17.09A on the 115VAC range, 20 ms holdup, 460 BTU/hr heat dissipation per unit |
|
3200W DC supply output |
55V at 58.0A from a -48 to -60 VDC input drawing 36A per input, 8 ms holdup |
|
Input line voltage effect |
The 115VAC range caps the 3200W AC supply at 1560W and the 2100W AC supply at 940W per unit against 3190W and 2102W on the 230VAC range, which changes how many supplies a given PoE load needs |
|
Powered-device count |
Sum the per-port class draw of the installed PoE line cards against the active budget rather than the per-slot maximum |
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Supervisor slot population |
Confirm supervisor engines are planned for slots 2 or 3 and line cards for slots 1 and 4. |
Line cards are not supported in the supervisor slots, so a four-line-card bill of materials cannot be seated in this chassis. |
|
Line card supervisor dependency |
Confirm the selected line cards are supported by the chosen supervisor engine. |
C9400-LC-24XY, C9400-LC-12QC, C9400-LC-48HX, C9400-LC-48TX and C9400-LC-48XS require C9400X-SUP-2 or C9400X-SUP-2XL and will not operate with the C9400-SUP-1 supervisor class. |
|
Software image floor |
Confirm the target Cisco IOS XE train meets 16.9.1 for the C9400-SUP-1 supervisor class or 17.7.1 for C9400X-SUP-2 and C9400X-SUP-2XL. |
A chassis staged on an image below the supervisor floor will not bring the supervisor into service. |
|
Power supply line items |
Confirm the number, wattage and input type of C9400-PWR-3200ACT, C9400-PWR-3200AC, C9400-PWR-2100AC or C9400-PWR-3200DC units against the chosen redundancy mode. |
Power supplies are separate order lines from the chassis PID, and the 115VAC derating changes how many units a PoE load needs. |
|
Chassis-specific fan tray |
Confirm the fan tray line item reads C9404-FAN=. |
C9407-FAN= and C9410-FAN= are built for the taller chassis and do not fit the 4 slot model. |
|
Rack and accessory kits |
Confirm C9404-ACC-KIT= and C9404-RACK-19-KIT= are on the order for a new install. |
These kits are chassis-specific and no shelf install kit is listed for the 4 slot chassis, so rail support has to come from the rack itself. |
|
Blank covers for empty bays |
Confirm C9400-S-BLANK= and C9400-PWR-BLANK= quantities match the unpopulated slot and power bay count. |
Open bays disturb the chassis airflow path that the dual serviceable fan tray depends on. |
|
Supervisor SSD option |
Confirm whether C9400-SSD-240GB, C9400-SSD-480GB or C9400-SSD-960GB is required for application hosting. |
The SSD is a supervisor line item rather than a chassis feature and cannot be added from the chassis PID. |
Optional Add-ons
|
Model |
Description |
|---|---|
|
Catalyst 9400 Series Supervisor 1XL module, 240 Gbps per line-card slot in this chassis | |
|
Catalyst 9400 Series Supervisor 2XL module, 480 Gbps per line-card slot | |
|
C9400-SUP-1XL/2 |
Catalyst 9400 Series redundant Supervisor 1XL module for the second supervisor slot |
|
C9400X-SUP-2XL/2 |
Catalyst 9400 Series redundant Supervisor 2XL module for the second supervisor slot |
|
Catalyst 9400 Series Titanium rated 3200W AC power supply | |
|
Catalyst 9400 Series Platinum rated 3200W AC power supply | |
|
Catalyst 9400 Series Platinum rated 2100W AC power supply | |
|
Catalyst 9400 Series 3200W DC power supply | |
|
Catalyst 9400 Series 4 slot chassis fan tray | |
|
C9404-ACC-KIT= |
Catalyst 9400 Series 4 slot chassis accessory kit |
|
C9404-RACK-19-KIT= |
Catalyst 9400 Series 4 slot chassis 19-in rack mount kit |
|
C9400-S-BLANK= |
Catalyst 9400 Series slot blank cover for unpopulated line-card slots |
|
Catalyst 9400 Series power supply blank cover for unpopulated power bays | |
|
Catalyst 9400 Series 240GB M2 SATA memory for the supervisor engine | |
|
Catalyst 9400 Series 480GB M2 SATA memory for the supervisor engine | |
|
Catalyst 9400 Series 960GB M2 SATA memory for the supervisor engine |
Front-Serviceable Fan Tray
Simplifies maintenance with side-to-side airflow and tool-less fan swaps, reducing enterprise downtime.
Modular Line-Card Flexibility
Supports a mix of 1 G, 10 G, 25 G, 40 G, and 100 G ports for tailored expansion and future-proof scalability.
Enterprise-Grade Resiliency
Features ISSU, NSF/SSO, N+1/N+N power redundancy, and StackWise Virtual for non-disruptive upgrades.
Front View
|
1 |
Chassis handholds |
5 |
Line card slots (1 and 4) |
|---|---|---|---|
|
2 |
Power supply modules |
6 |
Chassis Radio Frequency ID (RFID) |
|
3 |
Fan tray assembly |
7 |
Chassis model number |
|
4 |
Supervisor module slots (2 and 3) |
8 |
System ground |
|
1 |
Access to remove fan tray from the rear |
2 |
Blue beacon LED on the rear panel of the fan tray (always matches the blue beacon on the front panel of the fan tray) |
|---|
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9404R | Cisco ordering description | Cisco Catalyst 9400 Series 4 slot chassis, spare part number C9404R= |
| Total slots | 4 | Line-card slots | 2, in slot positions 1 and 4 |
| Supervisor engine slots | 2, in dedicated slot positions 2 and 3 | Slot restriction | Line cards are not supported in the supervisor engine slots |
| Supervisor engines supported | C9400-SUP-1, C9400-SUP-1XL, C9400-SUP-1XL-Y, C9400X-SUP-2 and C9400X-SUP-2XL | Supervisor engine redundancy | Yes, 1+1 redundancy with NSF/SSO and ISSU under 200 msec on dual supervisor engines |
| Bandwidth per line-card slot | 480 Gbps with C9400X-SUP-2XL, 240 Gbps with C9400X-SUP-2, 240 Gbps with C9400-SUP-1XL and C9400-SUP-1XL-Y, 80 Gbps with C9400-SUP-1 | Maximum bandwidth scalability per line-card slot | Up to 480 Gbps on all slots |
| Maximum 1G copper ports | 96 ports of 10/100/1000BASE-T RJ-45, including PoE+ and UPOE variants | Maximum multigigabit ports | 96 ports of 5G multigigabit and 96 ports of 10G multigigabit |
| Maximum fiber ports | 96 ports of 1G SFP and 96 ports of 10G SFP+ | Maximum 802.3bt Type 4 ports | 96 ports at 90W |
| Maximum 25G ports | 48 ports of SFP28, requires C9400X-SUP-2 or C9400X-SUP-2XL | Maximum 40G and 100G ports | 24 ports of QSFP+ and 8 ports of QSFP28, both requiring C9400X-SUP-2 or C9400X-SUP-2XL |
| Integrated PoE | Yes | PoE standards | IEEE 802.3af, IEEE 802.3at and the Cisco pre-standard power implementation |
| PoE power budget per line-card slot | 4320W with current shipping line cards | Maximum PoE capability per slot | Approximately 4800W chassis capability |
| Power supply bays | 4 | Power supply configuration | C9400-PWR-3200ACT and C9400-PWR-3200AC 3200W AC, C9400-PWR-2100AC 2100W AC, C9400-PWR-3200DC 3200W DC, ordered as separate line items |
| Power supply modes | Redundant N+N, redundant N+1 and combined mode, with AC or DC supplies in every mode | Combined mode formula | Total combined mode power equals P plus (N-1) x P x share ratio, where P is the output of one supply unit |
| AC input voltage | 100 to 240 VAC with plus or minus 10 percent for full range | DC input voltage | -48 to -60 VDC with +20/-16.6 percent for full range |
| 3200W AC supply rated input | 16A at 100 VAC and 16A at 200 VAC | 2100W AC supply rated input | 10.4A at 100 VAC and 10.4A at 200 VAC |
| 3200W DC supply rated input | 36A per input, 72A total | Supply data output | 3.3V at 3.0A on all three supplies, with 55V rails at 58.0A on the 3200W units and 38.21A on the 2100W unit at 230VAC |
| Heat dissipation | 950 BTU/hr per 3200W AC or DC supply and 460 BTU/hr per 2100W AC supply | Holdup time | 20 ms on the AC supplies and 8 ms on the DC supply |
| Power supply serviceability | Hot swappable, with per-unit Output Fail red LED, Input Okay green LED and blue ID LED | Power supply MTBF | 300,000 hours on the 3200W AC, 2100W AC and 3200W DC units |
| Power supply minimum software | Cisco IOS XE 16.6.1 for the 3200W AC unit, 16.8.1 for the 2100W AC unit and 16.9.1 for the 3200W DC unit | Fan tray | One fan-tray bay with the C9404-FAN dual serviceable fan tray |
| Dimensions (H x W x D) | 10.47 x 17.30 x 16.30 in. (26.53 x 43.94 x 41.40 cm) | Rack units | 6 RU |
| Chassis weight | 39.0 lb (17.2 kg) with fan tray | Mounting | 19-in rack compatible from the front, with 19-in rack and cable guide hardware included |
| Operating temperature | 23 to 113 degrees F (-5 to +45 degrees C) up to 6,000 feet and 23 to 104 degrees F (-5 to +40 degrees C) up to 10,000 feet, with 0 degrees C minimum ambient for cold startup | Short-term exceptional conditions | 23 to 131 degrees F (-5 to +55 degrees C) up to 6,000 feet and 23 to 122 degrees F (-5 to +50 degrees C) up to 10,000 feet |
| Storage temperature | -40 to 158 degrees F (-40 to 70 degrees C) | Relative humidity | 10 to 95 percent, noncondensing |
| Operating altitude | -60 to 3000m | Asset tracking | Embedded RFID tags on the chassis, supervisor, line cards, power supplies and fan trays |
| Minimum software release | Cisco IOS XE 16.9.1 with C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y, and Cisco IOS XE 17.7.1 with C9400X-SUP-2 or C9400X-SUP-2XL | Rated MTBF | 2,077,070 hours |
| Safety certifications | UL 60950-1, CAN/CSA-C222.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1 and IEEE 802.3, with CE Marking | EMC certifications | 47 CFR Part 15, CISPR22 Class A, KN 32 Class A, EN 300 386 V1.6.1, EN 55022 Class A, EN 55032 Class A, CISPR 32 Class A, EN61000-3-2, EN61000-3-3, ICES-003 Class A, TCVN 7189 Class A, V-3 Class A, CNS13438 Class A, CISPR24, EN55024, TCVN 7317 and KN35 |
| Industry environmental standards | NEBS operating temperature -5 to 55C, relative humidity 10 to 93 percent, operating altitude up to 1829 m (6000 ft) at 55C, and ETSI 300-019 requirements | Chassis accessory part numbers | C9404-FAN=, C9404-ACC-KIT=, C9404-RACK-19-KIT=, C9400-S-BLANK= and C9400-PWR-BLANK= |
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Customer Reviews
Questions & Answers
-
What is Cisco C9404R used for?
-
Does C9404R come with supervisors or line cards?
-
How many line cards does C9404R support?
-
Can C9404R use redundant supervisor engines?
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How is C9404R different from C9407R?
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What power supplies does C9404R support?
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Which fan tray is used with C9404R?
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When is C9404R not the right chassis?
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