# Ethernet Adapter HPE 1Gb 4-port 366FLR

**URL:** https://aio.lv/en/product--hp-enterprise-665240-b21-rfb--3202814
**Data updated:** 2025-12-01 18:47 (EET)
**Category:** Network Cards
**Manufacturer:** HP Enterprise
**Manufacturer code:** 665240-B21-RFB
**EAN:** 4053162259294
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 28.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-enterprise-665240-b21-rfb--3202814

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The HPE Ethernet 1Gb 4-port 366FLR is a wired network adapter designed for high-speed connectivity. It features four Ethernet ports, PCI Express host interface, and supports a maximum data transfer rate of 1000 Mbit/s. Ideal for enhancing network performance in enterprise environments, this adapter ensures reliable and efficient data transmission.

## Long description

The HPE Ethernet 1Gb 4-port 366FLR is a FlexibleLOM 4-port 1GbE adapter designed for select HPE ProLiant Gen8 rack and scalable servers. Built on the Intel I350 Ethernet controller and using a PCI Express 2.1 x4 interface, this adapter provides four 1 Gb Ethernet ports in a single-chip FlexibleLOM form factor that reduces power consumption while delivering standard network connectivity and advanced offload features.
Advantages
The adapter combines four 1 Gb ports in a compact FlexibleLOM module, lowering system power requirements and enabling easier infrastructure upgrades on supported HPE Gen8 servers. It supports advanced offloads (Large Send Offload, TCP checksum and segmentation), virtualization features and Precision Time Protocol support, which helps reduce CPU load and improves network performance for virtualized and time-sensitive workloads.
Key specifications
Form factor: FlexibleLOM
Controller: Intel Ethernet Controller I350
Interface: PCI Express 2.1 x4
Ports: 4 × 1 Gb Ethernet
Offload features: Large Send Offload (LSO), TCP checksum and segmentation offload
Virtualization support: Intel VT for Connectivity, VMware NetQueue, Microsoft VMQ
Additional features: MSI-X, VLAN tagging, Jumbo frames, Wake-on-LAN (WOL), PXE boot
Time protocols: IEEE 1588 (Precision Time Protocol) and 802.1AS support
Power and management: Energy Efficient Ethernet, HPE Sea of Sensors 3D Technology
How to use
Install the HPE 366FLR into a compatible FlexibleLOM slot on a supported HPE ProLiant Gen8 rack or scalable server according to the server hardware installation guide. Connect network cables to the four RJ-45 ports and configure network settings in the server operating system or hypervisor. Enable or configure offload and virtualization features (for example LSO, VMQ or NetQueue) in the OS/network driver as required for your workload. Use the server BIOS/firmware and management tools to verify link status, boot options (PXE) and power-management settings such as Energy Efficient Ethernet.
Recommendations
Use the HPE 366FLR in supported HPE ProLiant Gen8 systems and keep network drivers and server firmware up to date to ensure full compatibility and access to virtualization and offload features. For time-sensitive applications enable IEEE 1588/802.1AS support and verify network switch configuration for PTP if required.

## Specifications

| Feature | Value |
|---|---|
| Component for | Server |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Interface | Ethernet |
| Host interface | PCI Express |
| Internal | Yes |
| Ethernet LAN (RJ-45) ports | 4 |
| PCI version | 2.1 |

### Bandwidth

| Feature | Value |
|---|---|
| Maximum data transfer rate | 1000 Mbit/s |

### Network

| Feature | Value |
|---|---|
| Networking standards | IEEE 802.1Q, IEEE 802.3x, IEEE 802.3u, IEEE 802.3az, IEEE 802.3ad, IEEE 802.3ab, IEEE 802.3, IEEE 802.1as, IEEE 1588 |
| Ethernet LAN | Yes |
| Jumbo frames support | Yes |
| Ethernet interface type | Gigabit Ethernet |

### Performance

| Feature | Value |
|---|---|
| Compatible products | ProLiant DL20 Gen9
ProLiant DL360 Gen9
ProLiant DL380 Gen9
Apollo 4200 Gen9
ProLiant DL120 Gen10
ProLiant DL160 Gen10
ProLiant DL180 Gen10
ProLiant DL325 Gen10
ProLiant DL360 Gen10
ProLiant DL380 Gen10
ProLiant DL385 Gen10
ProLiant DL560 Gen10
ProLiant DL580 Gen10
Apollo 2000 XL170r Gen10
Apollo 2000 XL190r Gen10
Apollo 4500 XL450 Gen10 |
| Built-in processor | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.45 kg |
| Height | 63.5 mm |
| Width | 209.6 mm |
| Depth | 248.4 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 5.5 W |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -65 - 85 |
| Operating temperature (T-T) | 0 - 55 |

## FAQ

### How much does the Ethernet Adapter 366FLR cost, and is it available for purchase?

The price is 34.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### 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.

### Where can I download the instructions for Ethernet Adapter 366FLR?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3202814/64666412_large.webp