Lenovo ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter: технические характеристики и документация
Abstract
The ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe 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 X4522 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 X4522 adapter and consider its use in IT solutions.
Change History
Changes in the July 8, 2026 update:
- Added OS support information - Operating system support section
Introduction
The ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe 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 X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter.

Figure 1. ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter (heatsink removed to show card detail)
Did you know?
For more than 15 years, the combination of AMD Solarflare™ low-latency Ethernet adapters and Onload™ family software have been used in virtually all facets of Capital markets such as leading-edge exchange systems, deterministic brokerage services, and sophisticated algorithmic trading applications.
Part number information
The following table shows the part number for the adapter.
| Part number | Feature code | Description |
|---|---|---|
| 4XC7B10840 | CHAX | ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter(Generic FW) |
The part numbers include the following:
- One PCIe adapter
- Low-profile (2U) and full-height (3U) adapter brackets
- Documentation
Supported transceivers and cables
The following table lists the supported transceivers.
| Part number | Feature code | Description | NVIDIA part number |
|---|---|---|---|
| 10Gb Transceivers | |||
| 00FE331 | B0RJ | 10GBASE-LR SFP+ Transceiver | - |
| 49Y4216 | 0069 | Brocade 10Gb SFP+ SR Optical Transceiver | - |
| 49Y4218 | 0064 | QLogic 10Gb SFP+ SR Optical Transceiver | - |
| 46C3447 | 5053 | SFP+ SR Transceiver | - |
| 4TC7A78615 | BNDR | ThinkSystem Accelink 10G SR SFP+ Ethernet transceiver | - |
| 25Gb Transceivers | |||
| 4TC7A69045 | BF10 | Lenovo Dual Rate 10G/25G SR SFP28 85C Transceiver | - |
| 4TC7A88638 | BYBJ | ThinkSystem Finisar Dual Rate 10G/25G SR SFP28 Transceiver | - |
25Gb transceivers: When installed in this 25Gb Ethernet adapter, 25Gb transceivers are designed to operate at either 25 Gb/s or 10 Gb/s speeds as listed in the description of the transceiver, however the speed also depends on the negotiation with the connected switch. In most configurations, this negotiation is automatic, however in some configurations you may have to manually set the link speed or FEC mode.
The following table lists the supported 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 | - |
| 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 | - |
| 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.
| 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 | - |
| SFP+ 10Gb Active DAC Cables | |||
| 00VX111 | AT2R | Lenovo 1m Active DAC SFP+ Cables | - |
| 00VX114 | AT2S | Lenovo 3m Active DAC SFP+ Cables | - |
| 00VX117 | AT2T | Lenovo 5m Active DAC SFP+ Cables | - |
| 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 X4522 adapter continues the Solarflare low-latency architecture with a custom ASIC design, delivering the same advanced acceleration, timing, and software capabilities as previous generations.
- Adapter hardware
- 2x SFP56 cages (compatible with SFP28)
- Support for direct attach copper (DAC) cables or optical transceivers
- PCIe Gen5 x8 host interface
- Low profile PCIe adapter
- Passively cooled
- Network acceleration
- Onload support - 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
- 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
Note: The X4522 adapter does not support XClarity OneCLI or out-of-band management in V3 servers.
Server support
The following tables list the ThinkSystem servers that are compatible.
| Part Number | Description | AMD V3 | 2S Intel V3/V4 | 1S V3 | 4S 8S Intel V3/V4 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SR635 V3 (7D9H / 7D9G) |
SR655 V3 (7D9F / 7D9E) |
SR645 V3 (7D9D / 7D9C) |
SR665 V3 (7D9B / 7D9A) |
SD535 V3 (7DD8 / 7DD1) |
ST650 V3 (7D7B / 7D7A) |
SR630 V3 (7D72 / 7D73) |
SR650 V3 (7D75 / 7D76) |
SR630 V4 (7DG8 / 7DG9) |
SR650 V4 (7DGC / 7DGD) |
SR650a V4 (7DGC / 7DGD) |
ST45 V3 (7DH4 / 7DH5) |
ST50 V3 (7DF4 / 7DF3) |
ST250 V3 (7DCF / 7DCE) |
SR250 V3 (7DCM / 7DCL) |
SR850 V3 (7D97 / 7D96) |
SR860 V3 (7D94 / 7D93) |
SR950 V3 (7DC5 / 7DC4) |
SR850 V4 (7DJT / 7DJS) |
SR860 V4 (7DJQ / 7DJN) |
||
| 4XC7B10840 | ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter(Generic FW) | N | N | N | Y | N | N | N | N | N | Y | Y | N | N | N | N | N | N | N | N | N |
| Part Number | Description | AI Servers | Edge | Super computing | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
SR675 V3 (7D9Q / 7D9R) |
SR680a V3 B200 (7DM9) |
SR685a V3 (7DHC) |
SR780a V3 (7DJ5) |
SR680a V4 (7DMK) |
SE100 (7DGR) |
SE455 V3 (7DBY) |
SC750 V4 (7DDJ) |
SC777 V4 (7DKA) |
SD665 V3 (7D9P) |
||
| 4XC7B10840 | ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter(Generic FW) | N | N | N | N | N | N | N | N | N | N |
| Part Number | Description | Edge | 1S Intel V2 | 2S Intel V2 | AMD V1 | Multi node | AI | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SE350 (7Z46 / 7D1X) |
SE350 V2 (7DA9) |
SE360 V2 (7DAM) |
SE450 (7D8T) |
ST50 V2 (7D8K / 7D8J) |
ST250 V2 (7D8G / 7D8F) |
SR250 V2 (7D7R / 7D7Q) |
ST650 V2 (7Z75 / 7Z74) |
SR630 V2 (7Z70 / 7Z71) |
SR650 V2 (7Z72 / 7Z73) |
SR635 (7Y98 / 7Y99) |
SR655 (7Y00 / 7Z01) |
SR645 (7D2Y / 7D2X) |
SR665 (7D2W / 7D2V) |
SD530 V3 (7DDA / 7DD3) |
SD550 V3 (7DD9 / 7DD2) |
SR670 V2 (7Z22 / 7Z23) |
SR680a V3 (7DHE) |
||
| 4XC7B10840 | ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter(Generic FW) | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Part Number | Description | SC | Dense V2 | 4S V2 | 8S | 4S V1 | 1S Intel V1 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SD665-N V3 (7DAZ) |
SD650 V3 (7D7M) |
SD650-I V3 (7D7L) |
SD650-N V3 (7D7N) |
SD630 V2 (7D1K) |
SD650 V2 (7D1M) |
SD650-N V2 (7D1N) |
SN550 V2 (7Z69) |
SR850 V2 (7D31 / 7D32) |
SR860 V2 (7Z59 / 7Z60) |
SR950 (7X11 / 7X12) |
SR850 (7X18 / 7X19) |
SR850P (7D2F / 2D2G) |
SR860 (7X69 / 7X70) |
ST50 (7Y48 / 7Y50) |
ST250 (7Y45 / 7Y46) |
SR150 (7Y54) |
SR250 (7Y52 / 7Y51) |
||
| 4XC7B10840 | ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter(Generic FW) | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Part Number | Description | 2S Intel V1 | Dense V1 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ST550 (7X09 / 7X10) |
SR530 (7X07 / 7X08) |
SR550 (7X03 / 7X04) |
SR570 (7Y02 / 7Y03) |
SR590 (7X98 / 7X99) |
SR630 (7X01 / 7X02) |
SR650 (7X05 / 7X06) |
SR670 (7Y36 / 7Y37) |
SD530 (7X21) |
SD650 (7X58) |
SN550 (7X16) |
SN850 (7X15) |
||
| 4XC7B10840 | ThinkSystem AMD X4522-PLUS 10/25GbE SFP28 2-port PCIe Low-Latency Ethernet Adapter(Generic FW) | 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.
| Operating systems | SR665 V3 |
SR650 V4/SR650a V4 |
|---|---|---|
| Red Hat Enterprise Linux 8.6 | Y | N |
| Red Hat Enterprise Linux 8.7 | Y | N |
| Red Hat Enterprise Linux 8.8 | Y | N |
| Red Hat Enterprise Linux 8.9 | Y | N |
| Red Hat Enterprise Linux 8.10 | Y | N |
| Red Hat Enterprise Linux 9.2 | Y | N |
| Red Hat Enterprise Linux 9.3 | Y | N |
| Red Hat Enterprise Linux 9.4 | Y | Y |
| Red Hat Enterprise Linux 9.5 | Y | Y |
| Red Hat Enterprise Linux 9.6 | Y | Y |
| Red Hat Enterprise Linux 9.7 | Y | Y |
| Red Hat Enterprise Linux 10.0 | Y | Y |
| Red Hat Enterprise Linux 10.1 | Y | Y |
| Ubuntu 22.04.5 LTS or later with HWE kernel | Y | Y |
| Ubuntu 22.04 LTS or later with HWE kernel | Y | N |
| Ubuntu 24.04 LTS or later with HWE kernel | Y | Y |
Regulatory approvals
The X4522 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 X4522 adapter has the following physical specifications:
- Length: 168 mm (6.6 inches)
- Height: 69 mm (2.7 inches)
Operating environment
The X4522 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:
- 25 Gb Ethernet Connectivity
- Ethernet Adapters
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®
XClarity®
The following terms are trademarks of other companies:
AMD, AMD Solarflare™, Onload™, and Solarflare™ are trademarks of Advanced Micro Devices, Inc.
Intel®, the Intel logo is a trademark 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.




























