This item, 817753-B21, is the HPE option part number for the product described as Ethernet 10/25Gb 2-port 640SFP28 Adapter. Further details below.
Upgrade your server's networking capabilities with the HPE Ethernet 10/25Gb 2-port 640SFP28 Adapter. Powered by a Mellanox ConnectX-4 Lx processor, this adapter provides dual ports supporting both 10 Gigabit Ethernet and 25 Gigabit Ethernet speeds, offering a flexible solution for diverse networking environments. With a bidirectional throughput of 100 Gbps and support for jumbo frames up to 9.6KB, this adapter ensures high performance and efficient data transfer.
This adapter supports a wide range of advanced features including RDMA over Converged Ethernet (RoCE), VXLAN, NVGRE, and comprehensive QoS capabilities, making it ideal for virtualized environments and demanding applications. Designed as a PCI Express 3.0 x8 card, it easily integrates into compatible servers, enhancing connectivity and optimizing network performance. Compatible server models include but may not be limited to the HPE ProLiant DL380 Gen10, DL380 Gen9, DL360 Gen10, DL360 Gen9, DL560 Gen10, DL580 Gen10, ML350 Gen10, ML350 Gen9 and DL20 Gen10.
HPE Option Part #: 817753-B21
HPE Spare Part #: 840140-001
HPE Assembly Part #: n/a
Specifications:
- Product Line: HPE
- Model: 640SFP28
- Processor Brand: Mellanox Technologies
- Processor Type: Mellanox ConnectX-4 Lx
- Processors Installed: 1
- Compliant Standards: IEEE 1588v2, IEEE 802.1ab (LLDP), IEEE 802.1p, IEEE 802.1Q, IEEE 802.1Qau, IEEE 802.1Qaz, IEEE 802.1Qbb, IEEE 802.1Qbg, IEEE 802.3ad (LACP), IEEE 802.3ae, IEEE 802.3az, IEEE 802.3x
- Connectivity Technology: Wired
- Data Link Protocols: 10 Gigabit Ethernet, 25 Gigabit Ethernet
- Data Transfer Rate: 25 GBps
- Features: Extended Message-Signaled Interrupts (MSI-X), Full duplex mode, IPv4 support, IPv6 support, Jumbo Frames support, LACP support, Large Send Offload (LSO), LLDP support, Network Virtualization using Generic Routing Encapsulation (NVGRE), PXE support, QoS tagging, Quality of Service (QoS), RDMA over Converged Ethernet (RoCE), RDMA over Converged Ethernet (RoCE) v2, Receive Side Scaling (RSS), TCP Segmentation Offload (TSO), TCP/IP checksum offload, TCP/IP offloading, UDP/IP offloading, UEFI support, Virtual Extensible LAN (VXLAN), VLAN support
- Form Factor: Plug-in card
- Host Interface: PCI Express 3.0 x8 / PCI Express 3.0 x4
- PCI Specification Revision: PCIe 3.0
- Product Type: Network adapter
- Remote Management: SNMP
- Status Indicators: Link/activity
- Interface Provided: 2 x 25Gb Ethernet - SFP28
- Port Quantity: 2
- Network & Adapter Ports: 25 Gigabit Ethernet
- Capacity: Jumbo frame size: up to 9.6 KB
- Performance: Bandwidth per port: 50 Gbps, Bidirectional throughput: 100 Gbps
RESOURCES:
Quickspecs for 817753-B21
✅ DL20 Gen10
✅ DL360 Gen10
✅ DL360 Gen9
✅ DL380 Gen10
✅ DL380 Gen9
✅ DL560 Gen10
✅ DL580 Gen10
✅ ML350 Gen10
✅ ML350 Gen9
✅ and possibly others
Contact us via Live Chat if you have any questions about compatibility.
Last updated: 3/28/2025
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This product is warrantied against hardware failure for a period of 1 Year from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
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In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
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