The HP Ethernet 1Gb 4-Port 331T Adapter features the next generation of Ethernet integration, offering a single chip solution that reduces power requirements and optimizes I/O slot utilization. It delivers full line-rate performance across all ports with low power consumption. The HP 331T is ideal for virtualization, security, server consolidation, network segmentation, and other applications requiring maximum throughput and port density. The total aggregate throughput of 4Gb meets the needs of customers desiring high bandwidth. The HP 331T supports advanced features such as Large Send and Receive offload capability, TCP checksum and segmentation, VLAN tagging, MSI-X, jumbo frames, IEEE 1588, and virtualization features such as VMware NetQueue and Microsoft VMQ. Support for HP Sea of Sensors 3D Technology enhances server performance while reducing energy use and expense.

The HP 331T is designed for maximum throughput and high port density.
An aggregate, full duplex transfer rate of 8 Gbps per adapter delivers outstanding network performance that improves response time and removes bottlenecks. Comprehensive stateless offloads optimize host efficiency and VM density by leaving host CPU available for other duties. Virtualization support for VMware NetQueue and Microsoft VMQ help meet the performance demands of consolidated virtual workloads. Support for MSI/MSI-X provides performance benefits for multi-core servers by load balancing interrupts between CPUs/cores. Support for Energy Efficient Ethernet (EEE) reduces operating expenses.

Specification

Product
Product id	378811
Brand	Hewlett Packard Enterprise
Partnr	647594-B21
EAN/UPC code	886111431069
Bandwidth
Data transfer rate	1 Gbit/s
Bandwidth	8 Gbit/s
Ports & interfaces
Connectivity technology	Wired
Host interface	PCI-E
Interface	Ethernet
Ethernet LAN	Y
Ethernet LAN (RJ-45) ports	4
Compatible memory cards	N
Network
Maximum data transfer rate	2000 Mbit/s
Networking standards	IEEE 802.1Q, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Cabling technology	10/100/1000BaseT(X)
Wi-Fi	N
Full duplex	Y
Jumbo frames support	Y
Maximum operating distance	100 m
Design
Internal	Y
Product colour	Green, Grey
Chipset	Broadcom BCM5719
PCI Card form factor	Full-height (low-profile)
Certification	FCC Part 15 Class B\nICES=--3, Issue 4\nVCCI V3 (2010.04) Class B\nKN22 ClassB, KN24\nEN55022:2006+A12007 class B\nEN55024:1998+A1:2011+A2; EN61000-3-2:2006, EN61000-3-3:2008\nEN55022:2006 + A1:2007 Class B\nUL/cUL\nCE\nEN 60590
Power
Power consumption (typical)	4.3 W
Operational conditions
Operating temperature (T-T)	0 - 55 °C
Storage temperature (T-T)	-65 - 85 °C
Operating relative humidity (H-H)	10 - 90 procent
Storage relative humidity (H-H)	5 - 95 procent
System requirements
Compatible operating systems	Windows Server 2008 (32/64), Enterprise, Web, Embedded, R2\nMicrosoft Windows HPC Server 2008\nMicrosoft Windows 2008 Standard (32/x64)\nMicrosoft Windows 2008 Enterprise (32/x64)\nMicrosoft Windows Small Business Server 2011 (SBS V7)\nMicrosoft Windows Small Business Server 2011 Essentials\nRHEL 5.7 x86/ AMD 64 & EM 64T\nRHEL 6.1 x86/ AMD 64 & EM 64T\nSLES10: x86 / AMD 64 & EM 64T\nSLES 11: x86 / AMD 64 & EM64T\nSolaris 10\nVMWare vSphere 4.1/5.0\nCitrix\nHyperV (Windows 2008 32 and 64)
Weight & dimensions
Width	68.6 mm
Depth	132.1 mm
Height	60.5 mm
Weight	450 g
Other features
Cable type	Cat5
Connector(s)	RJ-45