N9K-C93108TC-FX3 – 48×1/10GBASE-T Ports – 6×40/100G QSFP28 Uplinks
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N9K-C93108TC-FX3 Description
Cisco Nexus N9K-C93108TC-FX3 (Nexus 93108TC-FX3) is a fixed 1RU leaf/ToR switch that brings 48 ports of 100M/1/10GBASE-T and six QSFP28 uplinks at 40/100G to brownfield and greenfield data centers. With 2.16 Tbps switching capacity and 1.2 Bpps forwarding, it delivers wire-rate performance over existing copper cabling while offering flexible 40/100G uplink migration paths. The platform provides MACsec on all ports, 40 MB shared buffers to smooth bursty traffic, dual management (RJ-45 and SFP), and hot-swappable, airflow-selectable PSUs and fans for resilient, serviceable operation in VXLAN EVPN or ACI fabrics.
Product Highlights
Quick Specs
|
Item |
N9K-C93108TC-FX3 |
|---|---|
|
Downlinks |
48 × 100M/1/10G BASE-T |
|
Uplinks |
6 × 40/100G QSFP28 (flexible breakouts) |
|
Switching capacity |
2.16 Tbps |
|
Forwarding rate |
1.2 Bpps |
|
Buffer |
40 MB shared |
|
System memory |
32 GB (default), expandable |
|
CPU / SSD |
4 cores / 128 GB SSD |
|
Management |
2 ports: 1 × RJ-45 OOB + 1 × SFP |
|
USB / Console |
1 × USB; RS-232 serial |
|
Form factor |
1RU; hot-swap fans/PSUs; front/back airflow options |
|
Typical / Max power |
420 W / 464 W |
|
PSU options |
500W AC, 930W DC, 1200W HVAC/HVDC (mix by airflow) |
|
MACsec |
Supported on all ports |
Key Features
Reuses existing CAT6/CAT6A runs for 100M/1/10G server or appliance access while providing simple 40/100G spine connections, reducing migration cost and downtime.
MACsec on every port enables encrypted leaf-to-leaf and leaf-to-spine links for multi-tenant, healthcare, and finance environments without sacrificing throughput.
2.16 Tbps switching, 1.2 Bpps forwarding, and 40 MB shared buffers help absorb fan-in spikes from virtualization, storage, VDI, and backup windows.
POAP for zero-touch bring-up, model-driven telemetry, and open interfaces (NETCONF/REST/OpenConfig) integrate cleanly with Ansible/Terraform pipelines.
Deploy as a VXLAN EVPN leaf under NX-OS or as an ACI leaf for intent-based segmentation, allowing phased brownfield migrations or fast greenfield rollouts.
vPC and ECMP for fast convergence, ISSU/SMU to shrink maintenance windows, plus hot-swap N+1 fans/PSUs and selectable airflow for consistent uptime.
Application Scenarios
Top-of-rack 10G copper access with 40/100G uplinks for virtualization clusters, mixed Windows/Linux estates, and appliance-heavy racks that prefer BASE-T.
Cost-efficient copper aggregation with per-port MACsec and simple automation for multi-tenant racks, branch aggregation, and services POPs.
Handles high-bitrate editing, NAS/iSCSI, and backup bursts; shared buffers and telemetry help maintain low jitter during peak fan-in events.
Nexus 9300 1/10GE Fiber Switches Comparison
|
Nexus 93120TX |
Nexus 93108TC-EX |
Nexus 9348GC-FXP |
Nexus 93108TC-FX |
Nexus 93108TC-FX3P |
Nexus 93216TC-FX2 |
Nexus 9348GC-FX3 |
Nexus 9348GC-FX3PH |
Nexus 93108TC-FX3 | |
|---|---|---|---|---|---|---|---|---|---|
|
Usage |
ACI leaf, top of rack, |
ACI leaf, top of rack, |
ACI leaf, top of rack, |
ACI leaf, top of rack, |
ACI leaf, top of rack, |
ACI leaf, top of rack, |
ACI leaf, top of rack, powered by Cloud Scale |
ACI leaf, top of rack, powered by Cloud Scale |
ACI leaf, top of rack, powered by Cloud Scale |
|
end of row |
powered by Cloud Scale |
powered by Cloud Scale |
powered by Cloud Scale |
powered by Cloud Scale |
powered by Cloud Scale | ||||
|
Form factor |
2 RU |
1 RU |
1RU |
1RU |
1RU |
2 RU |
1RU |
1RU |
1RU |
|
Throughput (Tbps) |
2.4 |
2.16 |
0.696 |
2.16 |
2.16 |
7.2 |
0.696 |
0.696 |
2.16 |
|
100 M/ 1 GE/ 10 GE copper ports |
96 |
48 |
48 (100 M/1 GE only) |
48 |
48 |
96 |
48 (100 M/1 G only) |
40 (100 M/1 G) and 8 (100M) |
48 |
|
10/25 GE ports |
4 |
None |
4 |
4 | |||||
|
40 GE ports |
6 |
6 |
2 |
6 |
6 |
12 |
2 |
2 |
6 |
|
100 GE ports |
No |
6 |
2 |
6 |
6 |
12 |
2 |
2 |
6 |
|
Latency (microseconds) |
~4 |
~2.5 |
~2.5 |
~2.5 |
~2.5 |
~1 |
~2.5 |
~2.5 |
~2.5 |
|
Buffer (MB) |
52 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
|
Power supply (watts); 2 per switch |
1200 |
650 |
350 |
500 |
1100 |
1200 |
500 |
350 |
350 |
|
Typical power (watts) |
542 |
290 |
178 |
276 |
600 |
210 |
226 |
238 |
420 |
|
Minimum software version |
NXOS-703I2.2A/ACI-N9KDK9-11.2 |
NXOS-703I4.3/ACI-N9KDK9-12.0 |
NXOS-703I7.1/ACI-N9KDK9-13.0 |
NXOS-703I7.1/ACI-N9KDK9-12.2A |
NXOS-9.3.5/ACI-N9KDK9-15.1.3 |
NXOS-9.3.1/ACI-14.1.2/4.1.2 |
NXOS-CS-10.4.1F |
NXOS-CS-10.4.1F |
NXOS-CS-10.4.2F |
|
Orderable |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
SKU |
N9K-C93120TX |
N9K-C93108TC-EX |
N9K-C9348GC-FXP |
N9K-C93108TC-FX |
N9K-C93108TC-FX3P |
N9K-C93216TC-FX2 |
N9K-C9348GC-FX3 |
N9K-C9348GC-FX3PH |
N9K-C93108TC-FX3 |
|
Operating System |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
NX-OS, ACI |
Nexus N9K-C93108TC-FX3 Front Panel
|
1 |
48 100M/1G/10GBASE-T ports |
2 |
6 40/100-Gigabit QSFP28 ports |
|
3 |
BCN, STS, ENV LEDs |
Nexus N9K-C93108TC-FX3 Rear Panel
|
1 |
Console port (1) |
2 |
USB port (1) |
|
3 |
Power supply modules (1 or 2) (AC power supplies shown) with slots numbered 1 (left) and 2 (right) |
4 |
Management port (1—SFP optical port) |
|
5 |
Management port (1—RJ-45 copper port) |
6 |
Fan modules (4) with slots numbered from 1 (left) to 4 (right) |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | N9K-C93108TC-FX3 (Nexus 9300-FX3 Series) | Product type | Fixed 1/10GBASE-T leaf switch with 100G uplinks |
| Downlink ports | 48 × 1/10GBASE-T (RJ-45, autospeed 100M/1G/10G) | Uplink ports | 6 × QSFP28 (40/100G) |
| Breakout options | QSFP28 100G → 4×25G; QSFP+ 40G → 4×10G | Transceiver/DAC/AOC | Cisco-qualified QSFP28/QSFP+/SFP+/SFP28; DAC/AOC supported |
| Operating system | NX-OS; ACI leaf mode capable | Fabric/Overlay | VXLAN EVPN (L2/L3), Anycast Gateway |
| Layer 3 features | OSPF, BGP, IS-IS, PBR, uRPF, Multicast (PIM/IGMP/MLD) | Segment Routing | SR-MPLS / SRv6 (software/OS dependent) |
| Security | CoPP, uACLs, 802.1X, CTS/SGT integration | MACsec | Supported on select uplinks (license/port dependent) |
| QoS & buffers | PFC, ECN, DWRR, per-port/queue shaping and policing | Telemetry | Streaming telemetry, sFlow/NetFlow (IPFIX), ERSPAN |
| Timing | IEEE 1588v2 PTP, SyncE (profile dependent) | Management | CLI, NX-API/REST, gNMI, SNMP; automation via Ansible/Python |
| Redundancy | Dual hot-swappable PSUs; N+1 hot-swappable fan trays | Airflow options | Front-to-Back or Back-to-Front (SKU dependent: -B/-F) |
| Throughput | Wire-rate on all ports for supported speeds | Latency class | Low-microsecond (feature/traffic dependent) |
| Physical | 1RU fixed chassis; standard 19-inch rack mounting | Environment | Typical 0°C–40°C operation; 5%–95% non-condensing RH |
| Power supplies | Field-replaceable AC or DC PSUs | Input range | 100–240 VAC (AC PSU) or –48 VDC (DC PSU) |
| Interface mgmt | OOB 10/100/1000 RJ-45 mgmt port; RJ-45/USB console | Storage/CPU | On-box SSD/eMMC; multi-core CPU (platform specific) |
| Licensing (NX-OS) | Essentials / Advantage feature tiers (perpetual or term) | Compliance | RoHS/REACh; regional safety/EMC certifications |
| Typical use cases | Leaf/ToR for mixed copper servers, 10G-T access with 100G fabric uplinks | Ordering PID | N9K-C93108TC-FX3 |
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Quality Certifications
Customer Reviews
Questions & Answers
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Who is N9K-C93108TC-FX3 built for?
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Does N9K-C93108TC-FX3 support 25G server ports?
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When is N9K-C93108TC-FX3 better than N9K-C93180YC-FX3?
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Does N9K-C93108TC-FX3 support Nexus 2000 FEX scale?
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Why does N9K-C93108TC-FX3 have more memory than N9K-C93180YC-FX3?
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What power level fits N9K-C93108TC-FX3 planning?
-
When is N9K-C93108TC-FX3 better than N9K-C9348GC-FX3?
-
What needs sizing before buying N9K-C93108TC-FX3?
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