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ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Low Latency Ethernet Adapter

Product Guide (withdrawn product)

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31 Mar 2026
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LP1808
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Abstract

The ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter is an advanced network adapter with the low latency needed particularly for the finance industry. Suitable workloads include those used by brokers, exchanges and market data vendors. The adapter has an architecture that is optimized for reliable operation and trade execution.

This product guide provides essential presales information to understand the Alvero X3522 adapter and its key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the X3522 adapter and consider its use in IT solutions.

Withdrawn: The ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter is withdrawn from marketing

Change History

Changes in the March 31, 2026 update:

  • The adapter is now withdrawn from marketing

Introduction

The ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter is an advanced network adapter with the low latency needed particularly for the finance industry. Suitable workloads include those used by brokers, exchanges and market data vendors. The adapter has an architecture that is optimized for reliable operation and trade execution.

The following figure shows the ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter.

ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency)
Figure 1. ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency)

Did you know?

Today’s leading trading firms, market makers, hedge funds, and exchanges demand low latency trade execution and risk management for competitive advantage. The X3522 adapter offers the necessary performance for these application types.

Part number information

The following table shows the part number for the adapter.

Withdrawn: The ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter is withdrawn from marketing

Table 1. Part number information
Part number Feature code Description
4XC7A84827 BUQK ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency)

The part numbers include the following:

  • One adapter
  • Low-profile (2U) and full-height (3U) adapter brackets
  • Documentation

Supported transceivers and cables

The following table lists the supported transceivers.

Table 2. Transceivers
Part number Feature code Description NVIDIA part number
10Gb Transceivers
46C34475053SFP+ SR Transceiver-
4TC7A78615BNDRThinkSystem Accelink 10G SR SFP+ Ethernet transceiver-
25Gb Transceivers
4M27A67041BFH2Lenovo 25Gb SR SFP28 Ethernet Transceiver-
7G17A03537AV1BLenovo Dual Rate 10G/25G SR SFP28 Transceiver-
4TC7A88638BYBJThinkSystem Finisar Dual Rate 10G/25G SR SFP28 Transceiver-

The following table lists the supported optical cables.

Table 3. Optical cables
Part number Feature code Description NVIDIA part number
LC-LC OM3 Fiber Optic Cables (these cables require a 10 GbE SFP+ SR or 25 GbE SFP28 SR transceiver)
00MN499 ASR5 Lenovo 0.5m LC-LC OM3 MMF Cable -
00MN502 ASR6 Lenovo 1m LC-LC OM3 MMF Cable -
00MN505 ASR7 Lenovo 3m LC-LC OM3 MMF Cable -
00MN508 ASR8 Lenovo 5m LC-LC OM3 MMF Cable -
00MN511 ASR9 Lenovo 10m LC-LC OM3 MMF Cable -
00MN514 ASRA Lenovo 15m LC-LC OM3 MMF Cable -
00MN517 ASRB Lenovo 25m LC-LC OM3 MMF Cable -
00MN520 ASRC Lenovo 30m LC-LC OM3 MMF Cable -
MTP-4xLC OM3 MMF Breakout Cables (these cables require a transceiver)
00FM412 A5UA Lenovo 1m MPO-4xLC OM3 MMF Breakout Cable -
00FM413 A5UB Lenovo 3m MPO-4xLC OM3 MMF Breakout Cable -
00FM414 A5UC Lenovo 5m MPO-4xLC OM3 MMF Breakout Cable -
SFP+ 10Gb Active Optical Cables
00YL634 ATYX Lenovo 1M SFP+ to SFP+ Active Optical Cable -
00YL637 ATYY Lenovo 3M SFP+ to SFP+ Active Optical Cable -
00YL640 ATYZ Lenovo 5M SFP+ to SFP+ Active Optical Cable -
00YL643 ATZ0 Lenovo 7M SFP+ to SFP+ Active Optical Cable -
00YL646 ATZ1 Lenovo 15M SFP+ to SFP+ Active Optical Cable -
00YL649 ATZ2 Lenovo 20M SFP+ to SFP+ Active Optical Cable -
SFP28 25Gb Active Optical Cables
4X97A94008 AV1F Lenovo 3m 25G SFP28 Active Optical Cable -
4X97A94011 AV1G Lenovo 5m 25G SFP28 Active Optical Cable -
4X97A94012 AV1H Lenovo 10m 25G SFP28 Active Optical Cable -
4X97A94013 AV1J Lenovo 15m 25G SFP28 Active Optical Cable -
4X97A94702 AV1K Lenovo 20m 25G SFP28 Active Optical Cable -
7Z57A03541 C10R Lenovo 3m 25G SFP28 Active Optical Cable -
7Z57A03542 C10S Lenovo 5m 25G SFP28 Active Optical Cable -
7Z57A03543 C10N Lenovo 10m 25G SFP28 Active Optical Cable -
7Z57A03544 C10T Lenovo 15m 25G SFP28 Active Optical Cable -
7Z57A03545 C1MB Lenovo 20m 25G SFP28 Active Optical Cable -
QSFP28 100Gb Ethernet Breakout Active Optical Cables
7Z57A03551 AV1R Lenovo 3m 100G to 4x25G Breakout Active Optical Cable -
7Z57A03552 AV1S Lenovo 5m 100G to 4x25G Breakout Active Optical Cable -
7Z57A03553 AV1T Lenovo 10m 100G to 4x25G Breakout Active Optical Cable -
7Z57A03554 AV1U Lenovo 15m 100G to 4x25G Breakout Active Optical Cable -
7Z57A03555 AV1V Lenovo 20m 100G to 4x25G Breakout Active Optical Cable -
OM4 LC to LC Cables (these cables require a transceiver)
4Z57A10845 B2P9 Lenovo 0.5m LC-LC OM4 MMF Cable -
4Z57A10846 B2PA Lenovo 1m LC-LC OM4 MMF Cable -
4Z57A10847 B2PB Lenovo 3m LC-LC OM4 MMF Cable -
4Z57A10848 B2PC Lenovo 5m LC-LC OM4 MMF Cable -
4Z57A10849 B2PD Lenovo 10m LC-LC OM4 MMF Cable -
4Z57A10850 B2PE Lenovo 15m LC-LC OM4 MMF Cable -
4Z57A10851 B2PF Lenovo 25m LC-LC OM4 MMF Cable -
4Z57A10852 B2PG Lenovo 30m LC-LC OM4 MMF Cable -

The following table lists the supported direct-attach copper (DAC) cables.

Table 4. Copper cables
Part number Feature code Description NVIDIA part number
SFP+ 10Gb Passive DAC Cables
00D6288 A3RG 0.5m Passive DAC SFP+ Cable -
90Y9427 A1PH 1m Passive DAC SFP+ Cable -
00AY764 A51N 1.5m Passive DAC SFP+ Cable -
00AY765 A51P 2m Passive DAC SFP+ Cable -
90Y9430 A1PJ 3m Passive DAC SFP+ Cable -
90Y9433 A1PK 5m Passive DAC SFP+ Cable -
00D6151 A3RH 7m Passive DAC SFP+ Cable -
SFP28 25Gb Passive DAC Cables
7Z57A03557 AV1W Lenovo 1m Passive 25G SFP28 DAC Cable -
7Z57A03558 AV1X Lenovo 3m Passive 25G SFP28 DAC Cable -
7Z57A03559 AV1Y Lenovo 5m Passive 25G SFP28 DAC Cable -
QSFP28 100G-to-4x25G Ethernet Breakout Cables
7Z57A03564 AV22 Lenovo 1m 100G QSFP28 to 4x25G SFP28 Breakout DAC Cable -
4Z57A85043 BS32 Lenovo 1.5m 100G to 4x25G Breakout SFP28 Breakout DAC Cable -
4Z57A85044 BS33 Lenovo 2m 100G to 4x25G Breakout SFP28 Breakout DAC Cable -
7Z57A03565 AV23 Lenovo 3m 100G QSFP28 to 4x25G SFP28 Breakout DAC Cable -
7Z57A03566 AV24 Lenovo 5m 100G QSFP28 to 4x25G SFP28 Breakout DAC Cable -

Technical specifications

The X3522 adapter has the following specifications:

25Gb support: The X3522 adapter supports 25GbE connectivity with Version 1.30.67.1368 or later firmware

  • Adapter hardware
    • 2x DSFP28 ports (double-density), compatible with SFP28 and SFP+
    • Each DSFP28 cage supports two ports via a shared PF
    • Support for direct attach copper (DAC) cables or optical transceivers
    • PCIe Gen4 x8 host interface
    • Low profile PCIe adapter
    • Onboard 8GB DDR4 memory
    • 1PPS In/Out SSMB connectors
    • Passively cooled
  • Network acceleration
    • Onload® - BSD sockets compliant TCP/UDP kernel bypass
    • TCPDirect - TCP/UDP kernel bypass
    • ef_vi low level API for high performance raw Ethernet networking
  • Time synchronization and hardware time stamping
    • On-board Stratum 3 compliant oscillator
    • IEEE 1588-2008 PTPv2
    • Hardware receive and transmit time stamping
  • Security features
    • Tamper resistant adapter – digitally signed firmware and secured private keys
    • Secure firmware upgrade
    • Hardware root of trust
  • Manageability and Remote Boot
    • UEFI boot
    • NC-SI over MCTP SMBus
    • PLDM over MCTP SMBus
    • MCTP PCIe VDM

Server support

The following tables list the ThinkSystem servers that are compatible.

Table 5. Server support - Current servers (Part 1 of 2)
Part Number Description AMD V3 2S Intel V3/V4 1S V3 4S 8S Intel V3/V4
4XC7A84827 ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency) Y Y Y Y N N Y Y N N N N N N N N N N N N
Table 6. Server support - Current servers (Part 2 of 2)
Part Number Description AI Servers Edge Super computing
4XC7A84827 ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency) N N N N N N N N N N
Table 7. Server support - Withdrawn servers (Part 1 of 3)
Part Number Description Edge 1S Intel V2 2S Intel V2 AMD V1 Multi node AI
4XC7A84827 ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency) N N N N N N N N Y Y N Y Y Y N N N N
Table 8. Server support - Withdrawn servers (Part 2 of 3)
Part Number Description SC Dense V2 4S V2 8S 4S V1 1S Intel V1
SR150 (7Y54)
4XC7A84827 ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency) N N N N N N N N N N N N N N N N N N
Table 9. Server support - Withdrawn servers (Part 3 of 3)
Part Number Description 2S Intel V1 Dense V1
4XC7A84827 ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency) N N N N N N N N N N N N

Operating system support

The adapter supports the operating systems listed in the following table.

Tip: This table is automatically generated based on data from Lenovo ServerProven.

Table 10. Operating system support for ThinkSystem AMD X3522 10/25GbE DSFP28 2-port PCIe Ethernet Adapter (Low Latency), 4XC7A84827
Operating systems
SR655
SR645
SR665
SR645 V3
SR665 V3
SR630 V2
SR650 V2
SR635 V3
SR650 V3 (4th Gen Xeon)
SR655 V3
SR630 V3 (5th Gen Xeon)
SR630 V3 (4th Gen Xeon)
SR650 V3 (5th Gen Xeon)
Red Hat Enterprise Linux 7.8 Y Y 1 Y 1 N N N N N N N N N N
Red Hat Enterprise Linux 7.9 Y Y 1 Y 1 N N Y Y N N N N N N
Red Hat Enterprise Linux 8.2 Y Y 1 Y 1 N N Y Y N N N N N N
Red Hat Enterprise Linux 8.3 Y Y Y N N Y Y N N N N N N
Red Hat Enterprise Linux 8.4 Y Y Y N N Y Y N N N N N N
Red Hat Enterprise Linux 8.5 Y Y Y N N Y Y N N N N N N
Red Hat Enterprise Linux 8.6 Y Y Y Y Y Y Y Y Y Y N Y N
Red Hat Enterprise Linux 8.7 Y Y Y Y Y Y Y Y Y Y N Y N
Red Hat Enterprise Linux 8.8 Y Y Y Y Y Y Y Y Y Y Y Y Y
Red Hat Enterprise Linux 9.0 Y Y Y Y Y Y Y Y Y Y N Y N
Red Hat Enterprise Linux 9.1 Y Y Y Y Y Y Y Y Y Y N Y N
Red Hat Enterprise Linux 9.2 Y Y Y Y Y Y Y Y Y Y Y Y Y
SUSE Linux Enterprise Server 15 SP2 Y Y Y N N Y Y N N N N N N
SUSE Linux Enterprise Server 15 SP3 Y Y Y N N Y Y N N N N N N
SUSE Linux Enterprise Server 15 SP4 Y Y Y Y Y Y Y Y Y Y N Y N
SUSE Linux Enterprise Server 15 SP5 Y Y Y Y Y Y Y Y Y Y Y Y Y
Ubuntu 18.04.5 LTS or later with HWE kernel N N N N N Y Y N N N N N N
Ubuntu 20.04.5 LTS or later with HWE kernel N N N Y Y N N Y N Y N N N
Ubuntu 20.04 LTS or later with HWE kernel N N N N N Y Y N Y N Y Y Y
Ubuntu 22.04.3 LTS or later with HWE kernel N N N N N N N N N N Y N Y
Ubuntu 22.04.5 LTS or later with HWE kernel N N N Y Y N N N N N N N N
Ubuntu 22.04 LTS or later with HWE kernel Y Y Y Y Y Y Y Y Y Y N Y N

1 The OS is not supported with EPYC 7003 processors.

Regulatory approvals

The X3522 adapter has the following hardware certifications:

  • FCC Part 15 – Radiated & Conducted Emissions (USA)
  • CAN ICES-3(A)/NMB-3(A) – Radiated & Conducted Emissions (Canada)
  • CISPR 32 – Radiated & Conducted Emissions (International)
  • EN55032: 2015 – Radiated & Conducted Emissions (European Union)
  • EN55035:2017 – Immunity (European Union)
  • EMC Directive 2014/30/EU
  • Electromagnetic Compatibility Regulations 2016 (UK)
  • VCCI (Class A)– Radiated & Conducted Emissions (Japan)
  • KCC Class A (Korea)
  • CNS13438 – Radiated & Conducted Emissions (Taiwan)
  • CNS 15663 - RoHS (Taiwan)
  • AS/NZS CISPR 32 – Radiated and Conducted Emissions (Australia/New Zealand)
  • Article 58-2 of Radio Waves Act, Clause 3 (Korea)

Physical specifications

The X3522 adapter has the following physical specifications:

  • Length: 168 mm (6.6 inches)
  • Height: 69 mm (2.7 inches)

Operating environment

The X3522 adapter is supported in the following environment:

  • Temperature:
    • Operating: 0°C to 55°C (32°F to 131°F)
    • Storage: -40°C to 75°C (-40°F to 167°F)
  • Humidity:
    • Operating: 8% to 90%
    • Storage: 5% to 95%

Warranty

One year limited warranty. When installed in a Lenovo server, this adapter assumes the server’s base warranty and any warranty upgrades.

Related product families

Product families related to this document are the following:

Trademarks

Lenovo and the Lenovo logo are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. A current list of Lenovo trademarks is available on the Web at https://www.lenovo.com/us/en/legal/copytrade/.

The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo®
ServerProven®
ThinkSystem®

The following terms are trademarks of other companies:

AMD, Alveo™, and Onload™ are trademarks of Advanced Micro Devices, Inc.

Intel®, the Intel logo and Xeon® are trademarks of Intel Corporation or its subsidiaries.

Linux® is the trademark of Linus Torvalds in the U.S. and other countries.

NVIDIA® is a trademark of NVIDIA Corporation.

Other company, product, or service names may be trademarks or service marks of others.

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