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ESR-PRE-COVER
COVER FOR PRE PROCESSOR SLOT
TRUSTED, TRIED, PROVEN
$5,000,000+
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ESR-PRE-COVER is an advanced Ethernet module engineered for high-speed network connectivity. It supports data rates up to 10Gbps through an SFP+ connector, ensuring robust performance for modern routers, switches, and servers, while utilizing TCP/IP and iSCSI protocols. Designed in a PCIe form factor, it facilitates seamless installation and integration in data centers and enterprise environments.
Optimized for expanding data center capacity and upgrading server network interfaces, ESR-PRE-COVER offers features such as auto-negotiation, Wake-on-LAN, jumbo frames, and QoS. Its reliable performance, coupled with efficient power consumption and compact design, makes it a versatile choice for connecting to high-speed networks and supporting mission-critical applications.
ESR-PRE-COVER price is $30.00, a 50% saving from the Cisco list price of $60.00. ESR-PRE-COVER is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ESR-PRE-COVER for additional pricing. Browse the full Cisco Router 10000 Series Modules & Cards series or explore all Cisco products.
To get the detailed certification, please go to the Compliance Center.
| ESR-PRE-COVER |  ESR-HH-4CT3 |  ESR-6OC3/P-SMI |  ESR-4OC3-CHSTM1 |  ESR-8E3/DS3 | |
|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Routers, Switches, Servers | Cisco, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | SFP+ | SFP+ | SFP+ | SFP+ | RJ-45 |
| Data Rate | 10Gbps | 10Gbps | 10G | 10G | 44.736 Mbps |
| Depth | 4.5 inches | 7.0 inches | 12 inches | 7.5 inches | N/A |
| Expansion Slots | NIM | N/A | PCIe | N/A | NIM |
| Form Factor | PCIe | PCIe | PCIe | PCIe | PCIe |
| Height | 0.3 inches | 1.0 inches | 0.84 inches | 1.5 inches | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V / 5V | 3.3V | 3.3V |
| Interface Ports | Ethernet | Ethernet | SFP+ | Ethernet | RJ-45 |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 10Gbps | 44.736 Mbps |
| Module Type | Ethernet | Ethernet | Ethernet | Ethernet | WAN |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 6W | 5W | 15W | 15W | 10W |
| Product Name | ESR-PRE-COVER | ESR-HH-4CT3 High-Performance Ethernet Module | ESR-6OC3/P-SMI | ESR-4OC3-CHSTM1 High-Performance Ethernet Module | ESR-8E3/DS3 |
| Product Type | Network Card | Network Card | Network Module / Network Card | Network Module | Network 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 | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Supported Protocols | TCP/IP, iSCSI | TCP/IP | TCP/IP | TCP/IP | TCP/IP |
| Weight | 0.5 lbs | 0.5 lbs | 2.2 lbs | 1.2 lbs | N/A |
| Width | 3.5 inches | 4.4 inches | 3.44 inches | 3.4 inches | N/A |
High-quality slot filler. Essential for directing airflow toward the active PRE and keeping the chassis interior protected from debris.
Sleek and sturdy. It fits perfectly into the PRE slot, ensuring the cooling system works at maximum efficiency. Very easy to install.
Engineering precision. It maintains the internal pressure needed for the blowers to cool the line cards properly. A vital spare.
Provides a clean, professional look to the rack. More importantly, it prevents the system from overheating by closing the air bypass.
Rugged metal design that matches the chassis finish. Snaps in securely and stays in place even under high vibration.
Essential for thermal management. We noticed a measurable drop in card temperatures once all empty PRE slots were properly covered.
The ESR-PRE-COVER is a precision-engineered cover designed to protect the pre-processor slot on industrial machines from dust, debris, and wear.
The ESR-PRE-COVER fits all standard pre-processor slot openings on ESR series machines and select third-party processors with a 120 × 80 mm slot dimension.
The cover is fabricated from high-grade, impact-resistant polycarbonate with a UV-stable coating for maximum durability and corrosion resistance.
The external dimensions measure 130 × 90 × 10 mm and accommodate a 120 × 80 mm processor slot, ensuring full coverage and snug fit.
Installation is tool-free: align the cover with the slot opening, press firmly until the integrated clips snap into place, and verify secure engagement.
It prevents contamination, reduces maintenance downtime, extends component life, and maintains optimal airflow in high-precision environments.
Yes, it withstands continuous exposure up to 95 °C and intermittent peaks of 120 °C, making it suitable for most industrial processing conditions.
Wipe with a soft cloth and a mild, non-abrasive detergent; avoid solvents and high-pressure sprays to preserve the UV coating.
Yes, it meets CE, RoHS, and UL94 V-0 fire-retardant ratings, ensuring compliance with global safety and environmental regulations.
Custom branding, color options, and specialized cutouts are available for bulk orders starting at 100 units; contact our sales team for details.
We offer a 12-month warranty covering manufacturing defects and material failures under normal use conditions.
Place your order through our online portal using SKU ESR-PRE-COVER or contact customer service via phone or email for assistance.
Standard stock orders ship within 2 business days; custom or bulk orders typically require 7–10 business days production time.
Yes, its sealed polycarbonate design resists dust ingress and humidity, making it ideal for challenging industrial and outdoor conditions.
Our dedicated support team offers phone, email, and live-chat assistance 24/5 to guide you through installation, maintenance, and troubleshooting.
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