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| Part Number: | P23666-B21 |
|---|---|
| Manufacturer: | HPE |
| Networking: | Network Adapter |
| Model: | DL325 Gen10 Plus, DL325 Gen11, DL345 Gen10 Plus, DL345 Gen11, DL360 Gen10 Plus, DL365 Gen10 Plus, DL365 Gen11, DL380 Gen10 Plus, DL385 Gen10 Plus, DL385 Gen11 |
| Description: | Buy HPE P23666-B21 100Gb QSFP56 ECAT Adapter. Genuine part with fast worldwide shipping from Euroland IT Store UK. |
| Availability: | In Stock |
The HPE P23666-B21 MCX653106A-ECAT Adapter provides high-speed InfiniBand HDR100 and 100Gb Ethernet connectivity for compatible HPE servers. Featuring two QSFP56 ports and a PCI Express 4.0 x16 interface, it is designed for high-performance computing, server clustering and demanding data centre workloads.
Unlike standard Ethernet-only network cards, P23666-B21 supports both InfiniBand and Ethernet operating modes. This makes it suitable for qualified infrastructure requiring low-latency communication and high-bandwidth connections between servers.
The adapter is a stand-up PCIe card, not an OCP 3.0 module. Buyers should confirm server compatibility, available PCIe slots, cooling requirements and supported cables before ordering.
| Specification | Details |
|---|---|
| Manufacturer | HPE |
| Part Number | P23666-B21 |
| Adapter Model | MCX653106A-ECAT |
| Product Type | InfiniBand and Ethernet Host Adapter |
| Number of Ports | 2 |
| Connector Type | QSFP56 |
| InfiniBand Connectivity | HDR100, up to 100Gbps per port |
| Ethernet Connectivity | Up to 100GbE per port |
| Host Interface | PCI Express 4.0 x16 |
| Form Factor | Low-profile stand-up PCIe adapter |
| Supported Cable Types | Qualified DAC and AOC cables |
| Server Compatibility | Selected HPE ProLiant and Apollo server configurations |
| Product Weight | Approximately 0.23 kg |
| Condition Options | New and Refurbished, subject to availability |
Performance note: The adapter has two ports rated at up to 100Gbps each. Actual aggregate throughput depends on the PCIe connection, server configuration and workload. Port speeds should not be added together to guarantee sustained application throughput.
HPE documents P23666-B21 for selected ProLiant and Apollo server platforms, including qualified configurations of the HPE ProLiant DL360 Gen10 Plus and HPE ProLiant DL380 Gen10 Plus.
Compatibility is configuration-specific. High-speed InfiniBand adapters may have additional requirements relating to PCIe slot selection, cooling, drive cages and ambient temperature.
Before purchasing, verify:
For example, the HPE ProLiant DL380 Gen10 Plus documentation lists specific PCIe slot restrictions and cooling requirements for this adapter. The applicable server QuickSpecs should always be checked before installation.
The HPE P23666-B21 supports two different networking technologies, allowing it to serve qualified high-performance infrastructure.
InfiniBand HDR100 provides up to 100Gbps per port and is commonly used in supported computing clusters requiring low-latency communication between systems.
Applications can include scientific computing, simulation, parallel processing and other workloads that benefit from efficient server-to-server communication.
In Ethernet mode, the adapter can provide up to 100GbE connectivity per port with suitable network switches and cables.
Ethernet operation must be configured using supported firmware and drivers. InfiniBand and Ethernet networks use different protocols and infrastructure, so the intended operating mode should be confirmed before deployment.
The adapter provides two QSFP56 connectors and supports qualified direct-attach copper (DAC) and active optical cables (AOC).
Cable selection depends on the intended operating mode, supported data rate, network switch and required connection distance.
Not every QSFP56 cable or transceiver is automatically compatible. Use HPE’s supported cable information and the relevant firmware release notes to verify the selected components.
Unless specifically stated in the product quotation, cables and transceivers should be treated as separate accessories.
The MCX653106A-ECAT adapter is relevant for organisations operating demanding computing infrastructure where network bandwidth and latency can affect workload performance.
Potential applications include:
Actual application performance depends on the complete server, storage, network fabric and software configuration.
HPE offers related InfiniBand adapters with different port counts, bandwidth capabilities and installation formats.
These adapters should not be treated as interchangeable. Check the required bandwidth, physical slot and HPE server support before selecting an alternative.
Before installing HPE P23666-B21, review the server maintenance documentation and confirm that the selected PCIe slot supports the adapter.
Check any cooling requirements, including high-performance fan kits and server inlet temperature restrictions.
After installation, verify that the adapter is detected and that the supported HPE firmware and drivers are installed.
Configure the intended InfiniBand or Ethernet operating mode, connect qualified cables and confirm both port links before returning the server to production.
A New or unused HPE P23666-B21 adapter may be suitable for planned HPC infrastructure expansion or maintaining replacement inventory. Confirm stock availability, included brackets, packaging and warranty terms before ordering.
A Refurbished adapter may provide a cost-effective alternative for maintaining compatible high-performance server infrastructure. Buyers should request confirmation of physical inspection, adapter detection and functional testing of both QSFP56 ports.
For either condition, confirm the included accessories, warranty coverage and UK delivery arrangements before purchase.
Explore other HPE networking components available through Euroland IT Store:
Related products are included for navigation and are not direct replacements or guaranteed compatible accessories for P23666-B21.
Euroland IT Store helps UK businesses source HPE networking adapters, enterprise server components and replacement IT hardware.
Contact our team to enquire about P23666-B21 availability, New or Refurbished condition, pricing, warranty terms and UK delivery.
For compatibility assistance, provide your server model, intended InfiniBand or Ethernet network configuration and required QSFP56 connectivity.
Request a Quote for HPE P23666-B21
HPE P23666-B21 is the MCX653106A-ECAT dual-port QSFP56 adapter supporting InfiniBand HDR100 and 100Gb Ethernet connectivity in compatible HPE servers.
Yes. The adapter supports both InfiniBand HDR100 and Ethernet operating modes, subject to compatible firmware, drivers and networking equipment.
It has two QSFP56 ports, each supporting up to 100Gbps in qualified configurations.
It is a stand-up PCIe 4.0 x16 adapter, not an OCP 3.0 module.
New and Refurbished options may be available through Euroland IT Store. Contact the team to confirm stock, testing, accessories, warranty and UK delivery.
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