# Network adapter HP 535FLR-T — PCI Express, 10Gb Ethernet, 2‑port, card form factor

**URL:** https://aio.lv/en/product--hp-817721-b21--4972035
**Data updated:** 2026-04-14 14:16 (EEST)
**Category:** Network Cards
**Manufacturer:** HP
**Manufacturer code:** 817721-B21
**EAN:** 889296607939
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 545.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 450.82 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-817721-b21--4972035

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

HP 535FLR-T is a server network adapter with PCI Express host interface and dual‑port 10Gb Ethernet connectivity. Designed for high‑throughput network links and virtualization environments, it supports standard Ethernet traffic and fits server mezzanine/flr slots. Typical use cases include database servers, virtualized hosts and storage networks.

## Long description

The HP 535FLR-T is a dual‑port 10Gb Ethernet network adapter in a card form factor designed for PCI Express mezzanine/FLR slots on compatible servers. It provides two 10 Gigabit Ethernet ports and a PCI Express host interface, delivering high throughput for virtualized environments, storage networks and latency‑sensitive applications. The adapter is intended to integrate with server platforms that support FLR mezzanine cards and to provide reliable, high‑speed connectivity for multi‑tenant and clustered deployments.
Advantages
The adapter offers dual 10Gbps ports to support aggregated bandwidth and redundancy, reducing network bottlenecks for demanding workloads. Its PCI Express FLR form factor allows low-profile integration into compatible server mezzanine slots while conserving standard I/O bay space. The HP 535FLR-T supports features common to enterprise network cards such as offload capabilities and driver support for virtualization, which help lower CPU overhead and improve overall network performance.
Suitable for
Virtualized hosts running multiple VMs where high network throughput and offloading are required
Database and application servers that need low-latency, high-bandwidth connections
Storage networks and clustered systems requiring multiple 10Gb links or link aggregation
Data center or rack servers with FLR/mezzanine-compatible PCIe slots
When it may not be suitable
This adapter requires a server platform that supports the FLR mezzanine/PCIe card form factor; it will not fit in standard full-height PCIe slots without the appropriate mezzanine slot. It is optimized for 10Gb Ethernet environments, so it may be unnecessary for systems that only require 1Gb connectivity or where lower-speed NICs suffice for the workload.
Key specifications
Interface: PCI Express (mezzanine/FLR form factor)
Network speed: 10 Gigabit Ethernet per port
Ports: 2 external 10Gb Ethernet ports
Form factor: Low-profile server mezzanine/FLR card
Typical use: High-throughput, virtualized and storage network environments
How to use
Install the HP 535FLR-T into a compatible server mezzanine or FLR slot following the server manufacturer’s instructions. After physical installation, ensure the server BIOS and firmware are updated to support the card, then install the appropriate network drivers provided by the server vendor or HP. Configure link settings, VLANs, teaming or offload options in the operating system or hypervisor network management tools according to your network design. Verify link negotiation and throughput using standard network diagnostics.
What to consider before purchase
Confirm your server chassis and motherboard support FLR/mezzanine PCIe card installation
Verify the operating system and hypervisor have compatible drivers for the adapter
Ensure your network infrastructure (switches, transceivers, cabling) supports 10Gb links
Consider whether dual 10Gb ports match your redundancy or aggregation requirements
Usage recommendations
For best performance, pair the adapter with compatible 10Gb switches and use certified SFP+ transceivers and appropriate cabling. Keep server firmware and network drivers up to date to maintain stability and leverage offload features for virtualized workloads.

## Specifications

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 85176990 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wireless |
| Interface | Ethernet |
| Host interface | PCI Express |
| USB ports quantity | 2 |

### Network

| Feature | Value |
|---|---|
| LAN controller | HPE FlexFabric 533FLR-T |
| Ethernet LAN data rates | 10 |
| Ethernet interface type | 10 Gigabit Ethernet |

### Design

| Feature | Value |
|---|---|
| Product colour | Black, Green, White |

## FAQ

### How much does the HP 535FLR-T PCIe 10Gb 2-port Ethernet adapter cost, and is it available for purchase?

The price is 545.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 10.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can HP 535FLR-T PCIe 10Gb 2-port Ethernet adapter be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 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 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, product colour, 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

https://aio.lv/img/cache/product/4972035/59210374_large.webp