Worldwide$5,000,000+
Inventory Delivered By
C
Chris Nolan
5
10Gb adapter delivered strong network performance.
665243-B21
Original Stock
Ready to Ship
HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter
FEATURED DEAL
Name:
665243-B21
- Description:
- HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
665243-B21 Overview
665243-B21 is a high-performance Ethernet adapter engineered for demanding networking environments. It delivers a reliable 10Gbps data rate through a robust PCIe connection interface, ensuring low latency and seamless integration for data centers, small office networks, and high-speed workstations.
Optimized for compatibility with Windows, Linux, macOS, VMware, and Hyper-V, 665243-B21 supports protocols including TCP/IP, UDP, iSCSI, NFS, and SMB. Its internal PCIe card form factor paired with an RJ-45 connector, along with features like auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS, makes it an ideal choice for high-demand enterprise and gaming setups.
665243-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 665243-B21 for additional pricing. Browse the full Hpe Network Adapters series or explore all Hpe products.
665243-B21 Specifications
- Product Type
- Network Adapter
- Adapter Type
- Ethernet
- Data Rate
- 10Gbps
- Connection Interface
- PCIe
- Supported Protocols
- TCP/IP, UDP, iSCSI, NFS, SMB
- Form Factor
- Internal PCIe Card
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Windows, Linux, macOS, VMware, Hyper-V
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Power Consumption
- 10W
- Connector Type
- RJ-45
- Maximum Range
- 100 meters
- Bus Type
- PCIe x4
- Product Name
- 665243-B21 High Performance 10Gbps Ethernet Adapter
- Height
- 1.0 in
- Width
- 4.5 in
- Depth
- 0.5 in
- Weight
- 0.4 lbs
665243-B21 Use Case
Virtualized Data Center Throughput Acceleration
Scenario: In a large enterprise data center running VMware vSphere on HPE ProLiant DL servers, IT teams install the 665243-B21-HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter to aggregate VM traffic over dual 10Gb SFP+ links to top-of-rack switches. Benefit: Delivers up to 20 Gbps of combined bandwidth with CPU offload, reducing VM migration times by 50% and boosting consolidation ratios without network bottlenecks.
Ultralow-Latency Financial Trading Connectivity
Scenario: A stock exchange firm equips its HPE trading servers with the 665243-B21-HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter for direct, redundant 10Gb fiber connections to market data feeds and order-matching engines. Benefit: Achieves sub-microsecond latency, ensuring faster order execution, improved price discovery and a competitive edge in high-frequency trading environments.
High-Definition Media Editing and Storage Networking
Scenario: A post-production studio integrates the 665243-B21-HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter into HPE ProLiant storage servers to link 4K/8K video editing workstations to a centralized NAS over iSCSI. Benefit: Enables sustained 10 Gbps throughput for multi-stream 4K editing, slashing file transfer times by up to 70% and maximizing creative productivity.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 665243-B21 |  798192-B21 |  789006-B21 |  QW971A |  684217-B21 | |
|---|---|---|---|---|---|
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Adapter Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 10Gbps | 10Gbps | 1Gbps | 10Gbps |
| Connection Interface | PCIe | PCIe | PCIe | PCIe | PCIe x4 |
| Supported Protocols | TCP/IP, UDP, iSCSI, NFS, SMB | TCP/IP, UDP | TCP/IP / UDP | TCP/IP / UDP | TCP/IP, UDP |
| Form Factor | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 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 | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Windows, Linux, macOS, VMware, Hyper-V | Windows, Linux, macOS | Windows / Linux / macOS | Windows / Linux / macOS | Windows, Linux, macOS, VMware, Hyper-V |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 1Gbps | 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 / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | 10W | 8W | 6W | 5W | 15W |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Maximum Range | 100 meters | 100 meters | 100 meters | 100 meters | 100 meters |
| Bus Type | PCIe x4 | PCIe x4 | PCIe x4 | PCIe x1 | PCIe x4 |
| Product Name | 665243-B21 High Performance 10Gbps Ethernet Adapter | 798192-B21 10Gbps Ethernet Adapter | 789006-B21 Ethernet Adapter | QW971A Gigabit Ethernet Adapter | 684217-B21 High Performance Ethernet Adapter |
| Height | 1.0 in | N/A | N/A | 0.2 inches | 1.2 inches |
| Width | 4.5 in | N/A | N/A | 4.5 inches | 3.5 inches |
| Depth | 0.5 in | N/A | N/A | 1.5 inches | 0.5 inches |
| Weight | 0.4 lbs | N/A | N/A | 0.5 lbs | 1.1 lbs |
Reviews & Ratings
A
Ayesha Parveen
5
Easy installation and driver support.
L
Lennart Svensson
4
Consistent throughput under load.
K
Kamran Shah
5
Ideal for virtualization traffic.
O
Olivia Scott
5
Reliable enterprise NIC.
Questions & Answers
What is the HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter (SKU: 665243-B21)?
The HPE 665243-B21 is a full-height, low-profile, dual-port 10 GbE network adapter with SFP+ interfaces designed for HPE ProLiant Gen9 and Gen10 servers.
What are the key features of the 560FLR-SFP+ Adapter?
Key features include two 10 GbE SFP+ ports, hardware offloads (TCP/UDP/IP, iSCSI, FCoE), Energy Efficient Ethernet, and a low-profile FlexibleLOM form factor.
Which HPE servers are compatible with SKU 665243-B21?
The adapter is supported on HPE ProLiant Gen9 and Gen10 rack and tower servers equipped with a FlexibleLOM slot, including DL360, DL380, ML350, and BL460 models.
What types of transceivers and cables does the adapter support?
It supports SFP+ SR (short reach) and LR (long reach) transceivers, active and passive direct-attach copper cables, and OM3/OM4 multimode fiber.