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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Product Guide (withdrawn product)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Withdrawn: The ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter is withdrawn from marketing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  • The adapter is now withdrawn from marketing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Withdrawn: The ThinkSystem AMD X3522 10/25GbE DSFP28 Low Latency Ethernet Adapter is withdrawn from marketing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 numberFeature codeDescriptionNVIDIA part number
LC-LC OM3 Fiber Optic Cables (these cables require a 10 GbE SFP+ SR or 25 GbE SFP28 SR transceiver)
00MN499ASR5Lenovo 0.5m LC-LC OM3 MMF Cable-
00MN502ASR6Lenovo 1m LC-LC OM3 MMF Cable-
00MN505ASR7Lenovo 3m LC-LC OM3 MMF Cable-
00MN508ASR8Lenovo 5m LC-LC OM3 MMF Cable-
00MN511ASR9Lenovo 10m LC-LC OM3 MMF Cable-
00MN514ASRALenovo 15m LC-LC OM3 MMF Cable-
00MN517ASRBLenovo 25m LC-LC OM3 MMF Cable-
00MN520ASRCLenovo 30m LC-LC OM3 MMF Cable-
MTP-4xLC OM3 MMF Breakout Cables (these cables require a transceiver)
00FM412A5UALenovo 1m MPO-4xLC OM3 MMF Breakout Cable-
00FM413A5UBLenovo 3m MPO-4xLC OM3 MMF Breakout Cable-
00FM414A5UCLenovo 5m MPO-4xLC OM3 MMF Breakout Cable-
SFP+ 10Gb Active Optical Cables
00YL634ATYXLenovo 1M SFP+ to SFP+ Active Optical Cable-
00YL637ATYYLenovo 3M SFP+ to SFP+ Active Optical Cable-
00YL640ATYZLenovo 5M SFP+ to SFP+ Active Optical Cable-
00YL643ATZ0Lenovo 7M SFP+ to SFP+ Active Optical Cable-
00YL646ATZ1Lenovo 15M SFP+ to SFP+ Active Optical Cable-
00YL649ATZ2Lenovo 20M SFP+ to SFP+ Active Optical Cable-
SFP28 25Gb Active Optical Cables
4X97A94008AV1FLenovo 3m 25G SFP28 Active Optical Cable-
4X97A94011AV1GLenovo 5m 25G SFP28 Active Optical Cable-
4X97A94012AV1HLenovo 10m 25G SFP28 Active Optical Cable-
4X97A94013AV1JLenovo 15m 25G SFP28 Active Optical Cable-
4X97A94702AV1KLenovo 20m 25G SFP28 Active Optical Cable-
7Z57A03541C10RLenovo 3m 25G SFP28 Active Optical Cable-
7Z57A03542C10SLenovo 5m 25G SFP28 Active Optical Cable-
7Z57A03543C10NLenovo 10m 25G SFP28 Active Optical Cable-
7Z57A03544C10TLenovo 15m 25G SFP28 Active Optical Cable-
7Z57A03545C1MBLenovo 20m 25G SFP28 Active Optical Cable-
QSFP28 100Gb Ethernet Breakout Active Optical Cables
7Z57A03551AV1RLenovo 3m 100G to 4x25G Breakout Active Optical Cable-
7Z57A03552AV1SLenovo 5m 100G to 4x25G Breakout Active Optical Cable-
7Z57A03553AV1TLenovo 10m 100G to 4x25G Breakout Active Optical Cable-
7Z57A03554AV1ULenovo 15m 100G to 4x25G Breakout Active Optical Cable-
7Z57A03555AV1VLenovo 20m 100G to 4x25G Breakout Active Optical Cable-
OM4 LC to LC Cables (these cables require a transceiver)
4Z57A10845B2P9Lenovo 0.5m LC-LC OM4 MMF Cable-
4Z57A10846B2PALenovo 1m LC-LC OM4 MMF Cable-
4Z57A10847B2PBLenovo 3m LC-LC OM4 MMF Cable-
4Z57A10848B2PCLenovo 5m LC-LC OM4 MMF Cable-
4Z57A10849B2PDLenovo 10m LC-LC OM4 MMF Cable-
4Z57A10850B2PELenovo 15m LC-LC OM4 MMF Cable-
4Z57A10851B2PFLenovo 25m LC-LC OM4 MMF Cable-
4Z57A10852B2PGLenovo 30m LC-LC OM4 MMF Cable-

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

Table 4. Copper cables
Part numberFeature codeDescriptionNVIDIA part number
SFP+ 10Gb Passive DAC Cables
00D6288A3RG0.5m Passive DAC SFP+ Cable-
90Y9427A1PH1m Passive DAC SFP+ Cable-
00AY764A51N1.5m Passive DAC SFP+ Cable-
00AY765A51P2m Passive DAC SFP+ Cable-
90Y9430A1PJ3m Passive DAC SFP+ Cable-
90Y9433A1PK5m Passive DAC SFP+ Cable-
00D6151A3RH7m Passive DAC SFP+ Cable-
SFP28 25Gb Passive DAC Cables
7Z57A03557AV1WLenovo 1m Passive 25G SFP28 DAC Cable-
7Z57A03558AV1XLenovo 3m Passive 25G SFP28 DAC Cable-
7Z57A03559AV1YLenovo 5m Passive 25G SFP28 DAC Cable-
QSFP28 100G-to-4x25G Ethernet Breakout Cables
7Z57A03564AV22Lenovo 1m 100G QSFP28 to 4x25G SFP28 Breakout DAC Cable-
4Z57A85043BS32Lenovo 1.5m 100G to 4x25G Breakout SFP28 Breakout DAC Cable-
4Z57A85044BS33Lenovo 2m 100G to 4x25G Breakout SFP28 Breakout DAC Cable-
7Z57A03565AV23Lenovo 3m 100G QSFP28 to 4x25G SFP28 Breakout DAC Cable-
7Z57A03566AV24Lenovo 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® and EPYC® 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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