# Network adapter HP 10GB 2-Port 548SFP+ Adapter P11338-B21-RFB, 2× SFP+ 10Gb

**URL:** https://aio.lv/en/product--hp-p11338-b21-rfb--10983807
**Data updated:** 2026-02-23 13:20 (EET)
**Category:** Computer Component Accessories
**Manufacturer:** HP
**Manufacturer code:** P11338-B21-RFB
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

HP 10GB 2-Port 548SFP+ Adapter (P11338-B21-RFB) is a dual‑port network interface card with two SFP+ ports supporting 10 Gigabit Ethernet. Designed for server and data center connectivity, it provides high‑speed fiber or DAC link options via SFP+ transceivers, low-latency performance, and compatibility with HP server platforms for virtualization, storage, and aggregation use cases.

## Long description

HP 10GB 2-Port 548SFP+ Adapter (P11338-B21-RFB) is a dual‑port network interface card engineered for server and data centre environments. It provides two SFP+ ports that support 10 Gigabit Ethernet links, enabling high‑speed connectivity for virtualization, storage access and network aggregation. The adapter supports 10Gb SFP+ transceivers or direct attach copper (DAC) cables and is designed to integrate with HP server platforms to deliver reliable, low‑latency network I/O.
Advantages
The adapter delivers consistent 10Gb throughput across both ports while maintaining low latency and CPU efficiency for demanding workloads. Its dual SFP+ design offers flexibility to use fiber optics or DAC connections depending on cabling and distance requirements. Built to fit common HP server form factors and drivers, the card simplifies deployment and management in rack and blade systems. Hardware offload features reduce host processing overhead for network tasks and improve overall system responsiveness.
Suitable for
 Server virtualization and hypervisor networking
 Storage networking (iSCSI, NAS front-end)
 Top-of-rack and aggregation links in data centres
 High‑performance backup and replication traffic
 Low‑latency application clusters and HPC interconnects
Key specifications
 Interface: Dual SFP+ ports supporting 10 Gigabit Ethernet
 Supported media: SFP+ transceivers (fiber) or direct attach copper (DAC)
 Data rate: Up to 10 Gbps per port
 Form factor: Low‑profile/full‑height PCIe add‑in card (server compatible)
 Latency: Low‑latency forwarding optimized for server workloads
 Offload capabilities: Hardware offload for networking tasks (checksum, segmentation, etc.)
 Compatibility: Designed for HP server platforms and common Linux/Windows server drivers
How to use
Install the adapter into an appropriate PCIe slot on a compatible HP server following the server manufacturer's installation guidelines. Fit SFP+ transceivers or connect a DAC cable to the SFP+ ports according to the required link type and distance. After physical installation, ensure the server has the correct drivers and firmware updates installed; the OS should detect the new 10Gb network interfaces. Configure link settings, teaming, VLANs or network offload options in the server operating system or management tools to match your network topology and performance requirements.
Usage recommendations
For optimal performance, use certified SFP+ transceivers or high-quality DAC cables and keep firmware and drivers up to date. Place the adapter in a PCIe slot that provides adequate lanes for full 10Gb throughput and enable hardware offloads in software where supported to reduce CPU load. For redundancy, consider link aggregation across both ports and integrate the adapter into the server's management and monitoring systems to track link health and bandwidth usage.

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### What is the warranty period?

All HP products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

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