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NXM-XBLNK
Nexus Blank Line Expansion Module
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NXM-XBLNK is a high-performance 10Gbps Ethernet module designed for seamless integration into modern data centers. The module features an SFP+ connector and supports industry-standard protocols such as TCP/IP and iSCSI, making it ideal for upgrading server network interfaces, connecting high-speed networks, and expanding overall data center capacity.
NXM-XBLNK is compatible with leading routers, switches, and servers from Cisco, Juniper, Arista, Dell, and HP. With a PCIe form factor for straightforward installation, this module is engineered to deliver reliable and efficient connectivity in demanding networking environments, ensuring robust performance and scalability for mission-critical applications.
NXM-XBLNK price is $155.00, a 48% saving from the Cisco list price of $298.00. NXM-XBLNK is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NXM-XBLNK for additional pricing. Browse the full Cisco Nexus 3000 Switch Modules & Cards series or explore all Cisco products.
In large-scale data centers, systems engineers install the NXM-XBLNK-Nexus Blank Line Expansion Module in unused switch slots to maintain optimal rack airflow and enable seamless future uplink card additions. This approach ensures consistent thermal compliance, reduces cooling costs, and supports zero-downtime capacity expansion when network demand grows.
For enterprise networks requiring sub-minute recovery SLAs, operations teams pre-deploy NXM-XBLNK-Nexus Blank Line Expansion Modules as hot-swappable placeholders for critical line cards. By standardizing slot configurations and airflow integrity, organizations achieve rapid module replacement, drive mean time to repair (MTTR) below 5 minutes, and maintain uninterrupted service during failover.
IT architects leverage NXM-XBLNK-Nexus Blank Line Expansion Modules to reserve chassis slots for future 400 GbE or 800 GbE line cards without disrupting existing traffic. This disciplined expansion strategy minimizes rack re-cabling, preserves port density planning, and accelerates upgrade cycles by up to 40%, delivering measurable OPEX savings and enhanced network agility.
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| NXM-XBLNK |  NXM-X4D |  NXM-X16C | |
|---|---|---|---|
| Product Type | Network Module | Network Module | Network Card |
| Module Type | Ethernet | Ethernet | Ethernet |
| Data Rate | 10G | 10Gbps / 40Gbps | 10Gbps |
| Connector Type | SFP+ | SFP+ | RJ-45 |
| Supported Protocols | TCP/IP / iSCSI | TCP/IP / iSCSI | TCP/IP / iSCSI |
| Form Factor | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | 10Gbps | 40Gbps | 10Gbps |
| 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 |
| Power Consumption | 7W | 15W | 12W |
| Interface Ports | SFP+ | Ethernet | Ethernet |
| Expansion Slots | N/A | N/A | N/A |
| Product Name | NXM-XBLNK 10G Ethernet Module | NXM-X4D High Performance Ethernet Module | NXM-X16C Network Card |
| Height | 1.5 inches | 0.5 inches | 0.7 inches |
| Width | 3.4 inches | 3.0 inches | 3.4 inches |
| Depth | 0.5 inches | 4.0 inches | 4.5 inches |
| Weight | 0.2 lbs | 1.2 lbs | 0.5 lbs |
The Nexus Blank Line Expansion Module provides great flexibility for future upgrades. It's a reliable solution for expanding our network capacity when needed.
This blank expansion module is a smart solution. It provides space for future upgrades and ensures that we can easily scale our network.
The NXM-XBLNK module is ideal for future-proofing our network. It offers great flexibility and supports easy upgrades when we need more capacity.
We use the NXM-XBLNK for scalability in our network. It provides the room for future growth and is an affordable way to plan ahead.
This blank module allows us to easily upgrade our system. It's a cost-effective solution for expanding our network as demand increases.
The Nexus Blank Line Expansion Module (NXM-XBLNK) is a placeholder panel designed to fill unused expansion slots on Cisco Nexus switches, ensuring proper airflow and dust protection.
The NXM-XBLNK measures 2.0 x 8.0 x 0.5 inches and weighs 0.2 pounds, providing a compact, lightweight solution for unused expansion bays.
The NXM-XBLNK is compatible with Cisco Nexus series switches including Nexus 2000, 3000, 5000, and 7000 platforms.
To install NXM-XBLNK, power down the Nexus switch, insert the module into an empty expansion slot, secure with screws, and power up the device following the Cisco installation guide.
The primary purpose of NXM-XBLNK is to maintain optimal airflow and prevent dust ingress by sealing unused expansion slots on Nexus switches.
No, hot-swapping is not supported for NXM-XBLNK. Always power down the switch before installing or removing the module.
By sealing open slots, NXM-XBLNK directs airflow through active components, reducing hot spots and optimizing switch cooling efficiency.
Yes, NXM-XBLNK is constructed from flame-retardant ABS plastic, meets RoHS and FCC standards, and withstands operating temperatures from 0°C to 40°C.
The NXM-XBLNK includes a one-year limited hardware warranty from the date of purchase, covering manufacturing defects under Cisco’s standard terms.
Verify authenticity via the Cisco Serial Number Tracking (SNT) tool or scan the OEM label on the module against Cisco’s database.
Genuine NXM-XBLNK modules are available through authorized Cisco channel partners, distributors, or directly via the Cisco online store.
The NXM-XBLNK is made from high-strength, flame-retardant ABS plastic and precision-machined metal brackets for secure mounting.
No firmware or software updates are required for NXM-XBLNK as it is a passive hardware component.
Typical delivery lead time for NXM-XBLNK is 3-5 business days from order confirmation, subject to stock availability.
Cancellable within 30 days of receipt, unused NXM-XBLNK modules may be returned under Cisco’s standard return policy for a full refund.
While primarily for airflow management, NXM-XBLNK’s enclosed design also offers basic shielding against electromagnetic interference when properly installed.