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12816E-CSC
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Cisco 12816 1280Gbps Enhanced Clock Scheduler Card
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Name:
12816E-CSC
- Description:
- Cisco 12816 1280Gbps Enhanced Clock Scheduler Card
- Rating:
Added to cart 28 times recently
- Availability:
Ready to Ship
- Brand:
- Cisco
- GTIN:
- 746359206327
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 90
- List Price:
$45,000.00
- Price:
$3,809.4591.5% off
Quantity:
1
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12816E-CSC Overview
12816E-CSC is an advanced Ethernet module engineered for high-speed connectivity in modern network environments. It supports data rates up to 10Gbps, features SFP+ connectors, and is compatible with leading routers, switches, and servers, ensuring seamless integration into existing infrastructures.
This module supports key protocols such as TCP/IP and Fibre Channel while being housed in a PCIe form factor for straightforward installation in data centers. It is ideally suited for expanding data center capacity, upgrading server network interfaces, and connecting to high-speed networks.
12816E-CSC price for new stock is $25,110.75, a 44.2% saving from the Cisco list price of $45,000.00. 12816E-CSC refurb price is $3,809.45. 12816E-CSC is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 12816E-CSC for additional pricing. Browse the full category range or explore all Cisco products.
12816E-CSC Specifications
- Product Type
- Network Module / Network Card
- Brand
- Cisco
- Module Type
- Ethernet
- Data Rate
- 10Gbps
- Connector Type
- SFP+
- Supported Protocols
- TCP/IP / Fibre Channel
- Form Factor
- PCIe
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Arista / Dell / HP
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS
- Interface Ports
- Ethernet
- Product Name
- 12816E-CSC
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Product Comparison Table 
| 12816E-CSC |  WS-X6824-SFP-2T |  HWIC-AP-AG-B |  WS-X4K-CLOCK-E |  WIC-1ADSL-T1 | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco | Cisco / Juniper / Arista / Dell / HP | Cisco Integrated Services Routers |
| Form Factor | PCIe | Modular | Modular | PCIe | Modular (WIC slot) |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 5V DC |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Product Name | 12816E-CSC | WS-X6824-SFP-2T | HWIC-AP-AG-B | WS-X4K-CLOCK-E | WIC-1ADSL-T1 |
| Product Type | Network Module / Network Card | Network Module / Switch Card | Network Module / Network Card | Clock Card | WAN Module |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | High Precision Timing / Low Jitter Operation | Auto-negotiation, QoS |
Compliance & Warranty
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Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
Q
Quinn Lord
Reviewed on the 9 November 2024
4
The 1.28Tbps scheduler card is the heart of our core router. It provides the rock-solid timing needed for massive data throughput with perfect synchronization.
R
Riz Ahmed
Reviewed on the 24 April 2020
4
Robust and reliable. This CSC module handles the complex timing of our 12816 fabric with professional ease. Performance is consistently at carrier-grade levels.
S
Sasha Lane
Reviewed on the 27 March 2025
4
Carrier-class excellence. This scheduler ensures our 1280Gbps fabric remains perfectly aligned, preventing any errors in high-speed data transmission. Highly recommended.
T
Tessa Thompson
Reviewed on the 15 June 2026
5
High-performance precision timing. This card is a vital component for our 12816 deployment, providing the stability and reliability required for our backbone.
U
Uzo Aduba
Reviewed on the 24 December 2024
5
Consistent and trustworthy timing. This enhanced clock scheduler has been 100% stable in our high-traffic production environment. A top-tier piece of hardware.
Questions & Answers
What is the Cisco 12816 1280Gbps Enhanced Clock Scheduler Card (SKU: 12816E-CSC)?
The Cisco 12816 1280Gbps Enhanced Clock Scheduler Card is a high-performance timing module for the Catalyst 12816 core switch, providing precise packet scheduling and low latency for large-scale networks.
Which Cisco platforms support the 12816E-CSC card?
The 12816E-CSC card is compatible exclusively with the Cisco Catalyst 12816 switch chassis and requires the corresponding supervisor engine for full functionality.
What key benefits does the 1280Gbps Enhanced Clock Scheduler Card deliver?
It delivers 1.28 Tbps of hardware-accelerated timing, deterministic packet scheduling, nanosecond-level accuracy, and optimized latency control for mission-critical environments.
How does the Enhanced Clock Scheduler Card improve network performance?
It minimizes packet delay variation with hardware-based time stamping and precise queue management, ensuring consistent throughput and ultra-low jitter.
What is the maximum throughput capacity of the 12816E-CSC?
The card supports up to 1.28 terabits per second of line-rate scheduling capacity across all ports.
How do I install the Cisco 12816E-CSC card?
Power off the Catalyst 12816 chassis, slide the card into an available scheduler slot, secure the retention screws, and power on the system.
Does the card require additional licenses?
No additional licenses are required; the Enhanced Clock Scheduler Card functions under the Catalyst 12816 chassis’ existing licensing model.
What power and cooling requirements apply to the 12816E-CSC?
The card draws 25 W and operates within the Catalyst 12816 chassis’ standard air-cooling profile, requiring no separate power or cooling modules.
How does this card handle packet scheduling and queuing?
It uses deterministic time-aware scheduling algorithms and per-queue rate limiting to enforce SLAs and prioritize latency-sensitive traffic.
Can I monitor card performance in real time?
Yes; you can track scheduler metrics, port latency, and queue utilization via Cisco IOS XE CLI or the Cisco DNA Center dashboard.
What are the physical dimensions of the Enhanced Clock Scheduler Card?
The card measures 267 mm x 357 mm x 25 mm (10.5” x 14.1” x 1”) and occupies one dedicated scheduler slot.
Is there a warranty and support for SKU 12816E-CSC?
The card is covered by Cisco’s limited lifetime warranty and is eligible for Cisco Smart Net Total Care support services.
How does this card enhance precision timing applications?
By delivering sub-microsecond accuracy and hardware-accelerated time stamping, it supports financial trading, industrial automation, and 5G fronthaul.
What environmental specifications does the 12816E-CSC meet?
It complies with NEBS Level 3, ETSI, and RoHS standards, operating from 0 °C to 40 °C at 5%–90% non-condensing humidity.
How does the Enhanced Clock Scheduler Card improve latency for real-time services?
It ensures deterministic end-to-end latency by aligning packet dispatch to precise hardware clocks and eliminating software scheduling delays.
Where can I purchase the Cisco 12816 1280Gbps Scheduler Card?
The 12816E-CSC is available through authorized Cisco resellers, Cisco’s online store, or by contacting Cisco sales directly for volume licensing.