This item, 647594-B21, is the HPE option part number for the product described as Ethernet 1Gb 4-port 331T Adapter. Further details below.
Expand your server's network capabilities with the HPE Ethernet 1Gb 4-port 331T Adapter. Featuring four RJ-45 ports, this adapter provides reliable Gigabit Ethernet connectivity for increased bandwidth and network redundancy. Built with a Broadcom BCM5719 processor, it supports advanced features such as Jumbo Frames, Large Send Offload (LSO), and PXE support, optimizing network performance.
This adapter is designed for easy integration into your existing infrastructure, utilizing a PCI Express 2.0 x4 interface. Compatible servers includes but may not be limited to the DL360 Gen9, DL380 Gen9, DL360 Gen10, DL380 Gen10, DL160 Gen9, DL180 Gen9, DL320e Gen8, DL360e Gen8, DL360p Gen8, DL380e Gen8, DL380p Gen8, DL385p Gen8, DL388 Gen9, DL560 Gen8, DL560 Gen10, DL580 Gen8, DL580 Gen10, DL60 Gen9, DL80 G, DL120 Gen9, and DL160 Gen8. Compliant with IEEE 802.3 standards, this adapter ensures seamless compatibility and reliable performance in diverse network environments.
HPE Option Part #: 647594-B21
HPE Spare Part #: 649871-001
PRODUCT SPECIFICATIONS FOR 647594-B21:
- Brand: HPE
- Model: 331T
- Manufacturer: Hewlett-Packard
- Processor Brand: Broadcom
- Processor Number: BCM5719
- Processors Installed: 1
- Cable Type: Ethernet 1000Base-T, Ethernet 100Base-TX, Ethernet 10Base-T
- Compliant Standards: IEEE 802.1as, IEEE 802.1Q, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad (LACP), IEEE 802.3az, IEEE 802.3u, IEEE 802.3x
- Connectivity Technology: Wired
- Data Link Protocols: Ethernet, Fast Ethernet, Gigabit Ethernet
- Data Transfer Rate: 1 GBps
- Features: Jumbo Frames support, Large Send Offload (LSO), PXE support
- Form Factor: Plug-in card
- Host Interface: PCI Express 2.0 x4
- PCI Specification Revision: PCIe 2.0
- Product Type: Network adapter
- Status Indicators: Link/activity, Port transmission speed
- Compatible Slots Required: 1 x PCI Express 2.0 x4
- Interface Provided: 4 x 1000Base-T - RJ-45
- Port Quantity: 4
- Network & Adapter Ports: 10/100/1000
RESOURCES FOR 647594-B21
Quickspecs for 647594-B21COMPATIBLE WITH:
PROLIANT DL SERIES
PROLIANT ML SERIES
PROLIANT SL SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR 647594-B21
| Spare PN | Description | |
|---|---|---|
 | 649871-001 | Ethernet 1Gb 4-port 331T adapter - Has four 10/100/1000BASE-T RJ45 ports and 4Mb integrated buffer memory - Requires one x4 (Gen2) PCI Express slot (compatible with x8 and x16 PCI Express slots) - Requires CAT5 or better twisted-pair |
Last updated: 5/2/2025
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7 Reviews
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5 Testing Review Submission
Posted by Javed on Jul 18, 2024
Testing review submission
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5 Very happy
Posted by Madison Bell on Feb 03, 2023
The shipping process was efficient, and my order arrived in excellent condition.
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5 Wonderful
Posted by Emmanuel Coleman on Aug 25, 2022
I can't express how thankful I am for the wonderful customer service. They were attentive and resolved any issues I had promptly.
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4 Good
Posted by Zayden Collins on Apr 16, 2022
I'm thankful for the excellent customer support. They made me feel valued and prioritized my needs.
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5 Great seller
Posted by Carina Ramirez on Feb 22, 2022
The fast shipping was a pleasant surprise, and I'm satisfied with the overall delivery experience.
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5 Great!
Posted by Yolanda on Aug 03, 2021
They always have stock of the parts we need
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5 Very good
Posted by Luke G / Little Rock, AR on Mar 14, 2016
Delivery was on time, product works as advertised
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
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
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
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
