HPE 647594-B21

Overview

The HPE 647594-B21 is a 4-port 1Gb Ethernet adapter designed to enhance your server’s network capacity by providing four gigabit-speed connections through a PCIe 2.0 x4 interface. With a total throughput of up to 8 Gb, it supports demanding network environments such as virtualization, network segmentation, and heavy traffic handling without causing bottlenecks. Its Broadcom BCM5719 chipset enables advanced networking features that improve performance and reduce CPU load.

Key features

• Four independent 1 Gb Ethernet ports to expand network connectivity and bandwidth
• Support for jumbo frames and VLAN tagging to optimize data flow and network segmentation
• Large send offload capability reduces CPU overhead during high network traffic
• Energy-efficient single-chip design minimizes power consumption and heat generation
• Includes both full-height and low-profile brackets for flexible installation in various server cases
• Compatible with 10/100/1000 Mbps networks, ensuring broad compatibility with existing infrastructure
• Reliable operation within a wide temperature range from 32 to 131 degrees Fahrenheit

Key specs

• Network ports: 4 x 1 Gb Ethernet
• Interface: PCIe 2.0 x4
• Chipset: Broadcom BCM5719
• Maximum aggregate throughput: 8 Gb
• Supported network speeds: 10/100/1000 Mbps
• Operating temperature: 32 to 131 °F (0 to 55 °C)
• Form factor: Full-height and low-profile brackets included

Connectivity and compatibility

This adapter fits into a PCIe 2.0 x4 slot, making it compatible with a wide range of server motherboards that support this interface. It works seamlessly with standard Ethernet networks at 10, 100, and 1000 Mbps speeds, allowing integration into existing data center or enterprise environments without requiring additional configuration. The inclusion of both full-height and low-profile brackets ensures it can be installed in various server chassis, from rack-mounted units to compact cases.

Performance and reliability

Equipped with the Broadcom BCM5719 chipset, the adapter delivers stable and consistent network performance even under heavy workloads. Features like jumbo frame support and VLAN tagging help optimize network traffic, while large send offload reduces the processing burden on your server’s CPU. Its low power consumption and efficient design contribute to system reliability by minimizing heat output and energy use, which is critical in dense server environments.

Ideal uses and environments

This Ethernet adapter is well suited for IT professionals looking to upgrade or expand server network ports in data centers, virtualization hosts, or environments with high network traffic demands. It fits well in setups requiring multiple gigabit connections for segmentation or redundancy. Its robust feature set and compatibility make it a practical choice for businesses aiming to improve network throughput and efficiency without extensive hardware changes.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more