C-NIM-8T – 8×1G RJ45 LAN/WAN Ports – Catalyst 8000

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C-NIM-8T Description

The Cisco C-NIM-8T is an 8-port Gigabit Ethernet LAN/WAN module that provides 10M/100M/1G copper connectivity with integrated Layer 2 switching and configurable Layer 3 WAN capability on the last two ports. Supporting full MACsec and SD-WAN, C-NIM-8T is ideal for branch routers requiring flexible copper LAN/WAN connectivity on Catalyst 8300, 8200, and 8200L platforms.

Supported Switch Models

Cisco C-NIM-8T is supported on the following platform:

Supported Platform

Supported Models

Cisco Catalyst 8300

C8300-2N2S-4T2X

C8300-1N1S-4T2X

C8300-2N2S-6T

C8300-1N1S-6T

Cisco Catalyst 8200

C8200-1N-4T

Cisco Catalyst 8200L

C8200L-1N-4T

Not Supported

Catalyst 8500 Series

Product Comparison

Parameter

C-NIM-8T

C-NIM-8M

C-NIM-4X

Ports

8 × 10/100/1000 RJ-45

8 × 100M/1G/2.5G mGig RJ-45

4 × 1G/10G SFP/SFP+

PoE / UPOE+

No

Yes, 90W on 4 ports

No

Max Speed

1 Gbps

2.5 Gbps

10 Gbps

Media

Copper

Copper mGig

Fiber SFP/SFP+

MACsec

Yes

Yes

Yes

Layer 3 Ports

Last 2 ports

Last 2 ports

Last 2 ports

Switching

Layer 2 line-rate

Layer 2 line-rate

Layer 2 line-rate

SD-WAN Support

Yes

Yes

Yes

Min IOS XE

17.11.1

17.12.2

17.11.1

Typical Use Case

1G LAN/WAN

High-power AP/5G CPE

Fiber WAN

Specifications

Parameter Specification Parameter Specification
Model C-NIM-8T Product Type 8-port Gigabit Ethernet LAN/WAN NIM
Form Factor NIM (Network Interface Module) Supported Platforms Catalyst 8300 / 8200 / 8200L
LAN/WAN Ports 8 × RJ-45 10M / 100M / 1G Maximum Speed 1 Gbps
PoE Support No PoE MACsec Support IEEE 802.1AE MACsec on all ports
Layer 3 Ports Last two ports configurable as routed WAN Layer 2 Switching Line-rate L2 switching on all ports
VLAN Support 4095 VLAN IDs / 1024 VLANs QoS 802.1p, 8 queues per port, SDWRR
Auto-MDIX Supported Jumbo Frames Up to 8 KB
SD-WAN Supported (vManage 20.11+) Minimum IOS XE 17.11.1
Dimensions 1.25 × 3.50 × 7.24 in. Dimensions (mm) 32 × 89 × 184 mm
Weight Approx. 230 g Operating Temperature –5°C to 55°C (23°F to 131°F)
Storage Temperature –40°C to 70°C Operating Humidity 5%–85% non-condensing
Non-operating Humidity 5%–95% non-condensing Typical Use Cases Branch LAN/WAN copper connectivity, SD-WAN appliances, 1G Ethernet access

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Customer Reviews

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    Patricia Nelson
    Posted on 02/03/2026
    Verified Buyer
    5.0

    Got clear answers to every technical question I asked.

    Lisa Vasquez
    Posted on 09/02/2026
    Verified Buyer
    4.0

    Our entire team has bought into Layer23 as a primary source. Wish the lead time was a bit shorter, but product quality made up for it.

    Carlos Foster
    Posted on 13/01/2026
    Verified Buyer
    5.0

    Quality matched what we’d get from a premium distributor.

    Procurement
    Posted on 20/10/2024
    Verified Buyer
    5.0

    Good price and fast shipping.

    Nathan Summers
    Posted on 12/06/2024
    Verified Buyer
    5.0

    Mission accomplished. Package secured.

Questions & Answers

  • What is C-NIM-8T used for?

    C-NIM-8T provides eight serial WAN interfaces for compatible Cisco routers that still need legacy serial circuit connectivity., during eight-port serial WAN migration.
  • When is C-NIM-8T selected?

    C-NIM-8T is selected when several legacy serial circuits, lab links, or migration handoffs need to remain on one router.
  • How is C-NIM-8T different from C-NIM-2T?

    C-NIM-8T provides higher serial port density than C-NIM-2T, reducing slots when many serial WAN links remain active., during eight-port serial WAN migration.
  • What cabling detail matters for C-NIM-8T?

    C-NIM-8T deployments need correct serial cable types, DTE or DCE role, clocking, connector adapters, and labeling., during eight-port serial WAN migration.
  • Can C-NIM-8T replace Ethernet WAN ports?

    C-NIM-8T preserves serial WAN connectivity and does not replace Ethernet WAN ports used for modern IP carrier handoffs.
  • Which router support check applies to C-NIM-8T?

    C-NIM-8T requires router slot support, IOS XE recognition, interface licensing, and configuration support for the intended serial links.
  • Why do C-NIM-8T links stay down?

    C-NIM-8T links may stay down because of clocking errors, cable role mismatch, carrier issues, encapsulation mismatch, or unsupported hardware., across serial WAN handoffs.
  • What migration value does C-NIM-8T provide?

    C-NIM-8T allows many serial circuits to remain online while a branch transitions toward Ethernet, broadband, or SD-WAN services.

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  • C-NIM-8T Datasheet