# HPE Ethernet 1Gb 4-port 331T Internal

**URL:** https://aio.lv/en/product--hp-enterprise-647594-b21-rfb--3202356
**Data updated:** 2025-12-09 17:59 (EET)
**Category:** Network Cards
**Manufacturer:** HP Enterprise
**Manufacturer code:** 647594-B21-RFB
**EAN:** 1234561312114
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The HPE Ethernet 1Gb 4-port 331T Internal is a wired connectivity solution designed for high-speed networking. It features a PCI Express host interface and supports a maximum data transfer rate of 2000 Mbit/s. This network adapter is ideal for enhancing server performance and ensuring reliable data transmission in enterprise environments.

## Long description

Enterprise and mid-market customers needing a low-power, high-port-density 1GbE network adapter for virtualization and server consolidation can use the HP Ethernet 1Gb 4-Port 331T Adapter. This quad-port PCIe copper Gigabit NIC delivers full line-rate performance across all four ports while minimizing power consumption and optimizing I/O slot usage. The adapter is based on the Broadcom 5719 chip, supports both standard and low-profile slots, and provides an aggregate full-duplex throughput of 8 Gb/s to meet high-bandwidth requirements.
Advantages
The HP 331T reduces energy use through advanced power-saving features including Energy Efficient Ethernet (EEE) and HP Sea of Sensors 3D Technology. It is optimized for server virtualization and consolidation, supporting VMware NetQueue and Microsoft VMQ to improve virtual machine performance and density. The adapter offloads network processing tasks from the host CPU to improve overall server efficiency and helps remove network bottlenecks with consistent line-rate performance on all ports.
Key specifications
Interface: Quad-port 1GbE (Copper) PCIe
Controller: Broadcom 5719
Throughput: Aggregate full-duplex 8 Gb/s
Slot compatibility: Standard and low-profile PCIe
Virtualization: VMware NetQueue, Microsoft VMQ
Offloads: Large send/receive offload, TCP checksum and segmentation
Interrupts: MSI/MSI-X support
Frames: Jumbo frame support
Time sync: IEEE 1588 support
Power-saving: Energy Efficient Ethernet (EEE), HP Sea of Sensors 3D Technology
How to use
Install the HP 331T adapter into an available standard or low-profile PCIe slot on a compatible server chassis. Connect the required copper Ethernet cables to the desired ports and configure network settings in the server operating system or hypervisor. Enable virtualization offloads (VMQ or NetQueue) and other stateless offload features in the OS/network driver to maximize throughput and reduce host CPU load. Verify link speed, jumbo frame settings, and any IEEE 1588 time synchronization settings as needed for your environment.
Recommendations
Use the HP 331T in virtualized or consolidated server environments where high port density and low power consumption are priorities. Ensure up-to-date drivers and firmware from the vendor are installed, and enable offload and virtualization features in the hypervisor to achieve optimal performance.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Interface | Ethernet |
| Host interface | PCI Express |
| Internal | Yes |
| Ethernet LAN (RJ-45) ports | 4 |

### Bandwidth

| Feature | Value |
|---|---|
| Maximum data transfer rate | 2000 Mbit/s |
| Full duplex | Yes |

### Network

| Feature | Value |
|---|---|
| Networking standards | IEEE 802.1as, IEEE 802.3x, IEEE 802.3u, IEEE 802.3az, IEEE 802.3ad, IEEE 802.3ab, IEEE 802.3, IEEE 802.1Q |
| Cabling technology | 10/100/1000BaseT(X) |
| Chipset | Broadcom BCM5719 |
| Ethernet LAN | Yes |
| Maximum operating distance | 100 m |
| Jumbo frames support | Yes |
| Ethernet LAN data rates | 10, 100, 1000 |

### Design

| Feature | Value |
|---|---|
| PCI Card form factor | Full-height (low-profile) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.45 kg |
| Height | 60.5 mm |
| Width | 196.9 mm |
| Depth | 249.2 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 4.3 W |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HP Enterprise 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 Enterprise 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.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, interface, host interface, maximum data transfer rate, weight, networking standards, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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