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HP

HP 331FLR PCIe 2.0 x4 4-Port GigE Network Adapter

SKU CH-1W4M-3G524 MPN 331FLR

Adds four Gigabit RJ-45 ports over a PCIe 2.0 x4 slot for wired Ethernet connectivity

  • TypePCIE Wi-Fi Adapter
  • PCIe 2.0 x4 interface delivers high-throughput wired connectivity
  • Four RJ-45 ports provide Gigabit Ethernet for server deployments
  • IEEE 802.3ad LACP support enables link aggregation for increased bandwidth
  • Jumbo Frames and Large Send Offload reduce CPU overhead during data transfer
  • Compliant with EN55022 Class B and FCC Part 15 B for electromagnetic compatibility

Four-Port Gigabit Ethernet Adapter

The HP 331FLR is a PCIe 2.0 x4 network card that adds four RJ-45 ports to a compatible ProLiant server. It supports 10 Mb, 100 Mb and 1 Gbps link speeds for wired Ethernet connectivity. The plug-in card form factor fits standard low-profile slots in the listed Gen8 platforms. It is intended for administrators expanding LAN capacity in rackmount or blade environments.

Sustained Load Behaviour

The adapter implements Large Send Offload and Jumbo Frame support to reduce host CPU utilisation during continuous high-throughput traffic. IEEE 802.3ad LACP allows link aggregation across the four ports for increased aggregate bandwidth and failover. Compliant with IEEE 802.3az Energy Efficient Ethernet, it lowers power draw during periods of light activity. Operating temperature range is 32 °F to 131 °F with 10 to 90 percent non-condensing humidity.

PCIe 2.0 x4 Interface Limits

The card uses a PCIe 2.0 x4 electrical interface, which constrains maximum theoretical throughput to the bandwidth of that generation and lane count. Four Gigabit ports can saturate the bus when all links run at full duplex line rate simultaneously. The adapter complies with FCC Part 15 B, EN55022 Class B, VCCI Class B, RoHS 6/6, UL and ICES standards. No wireless, Bluetooth or fibre connectivity is provided.

Highlights

  • PCIe 2.0 x4 interface delivers high-throughput wired connectivity
  • Four RJ-45 ports provide Gigabit Ethernet for server deployments
  • IEEE 802.3ad LACP support enables link aggregation for increased bandwidth
  • Jumbo Frames and Large Send Offload reduce CPU overhead during data transfer
  • Compliant with EN55022 Class B and FCC Part 15 B for electromagnetic compatibility

Specifications

TypePCIE Wi-Fi Adapter

Questions about this item

How much heat does the PCIe 2.0 x4 card generate when all four GigE ports run continuously?

The adapter operates between 32 °F and 131 °F with humidity from 10 % to 90 % non-condensing.

What slot and bracket does the 331FLR need to fit in a server?

It plugs into a PCIe 2.0 x4 connector and uses a standard RJ-45 bracket cut-out for the four ports.

Will the four-port adapter work in an older ProLiant DL360p Gen8 alongside existing PCIe 2.0 cards?

Yes, the 331FLR is listed for DL360p Gen8, DL380p Gen8, DL385p Gen8, DL560 Gen8, SL250s Gen8 and SL270s Gen8.

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