SKU: 35621479726

Lenovo ThinkSystem QLogic QL41262 PCIe 25Gb 2-Port SFP28 Ethernet Adapter

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Description

Lenovo ThinkSystem QLogic QL41262 PCIe 25Gb 2-Port SFP28 Ethernet AdapterThe Lenovo ThinkSystem QLogic QL41262 PCIe 25Gb 2 Port SFP28 Ethernet Adapter is a purpose built, high performance network interface designed for modern data centers. Built on eighth generation Cavium technology, this dual port 25GbE adapter delivers ultra low latency and exceptional throughput for demanding workloads, from virtualization to storage networks. It provides a seamless upgrade path for existing 10Gb networks, enabling you to scale

The Lenovo ThinkSystem QLogic QL41262 PCIe 25Gb 2-Port SFP28 Ethernet Adapter is a purpose-built, high-performance network interface designed for modern data centers. Built on eighth-generation Cavium technology, this dual-port 25GbE adapter delivers ultra-low latency and exceptional throughput for demanding workloads, from virtualization to storage networks. It provides a seamless upgrade path for existing 10Gb networks, enabling you to scale bandwidth with minimal disruption while maintaining reliability and enterprise-grade support. With Universal RDMA capabilities, the QL41262 supports RoCE, RoCE v2, and iWARP, bringing CPU offload and accelerated data movement to your infrastructure so you can accelerate compute, storage, and AI-driven workloads without sacrificing CPU cycles. In Lenovo ThinkSystem deployments, this adapter is optimized for dependable operation in mission-critical environments where performance, efficiency, and uptime matter most.

  • Dual-port 25GbE SFP28 connectivity: Two high-speed SFP28 ports deliver scalable, flexible uplinks for data center fabrics, enabling efficient link aggregation and fault tolerance in dense server environments.
  • Universal RDMA for ultra-low latency: Support for RoCE, RoCE v2, and iWARP enables direct memory access over the network, dramatically reducing CPU overhead and latency for latency-sensitive apps, storage, and HPC workloads.
  • PCIe Gen3 x8 host interface: A robust PCIe connection ensures high throughput to the host, supporting demanding workloads while maintaining compatibility with a wide range of ThinkSystem servers.
  • Optimized for virtualization and multi-tenant workloads: Designed to perform in virtualized environments with high I/O contention, delivering predictable performance for VMs, containers, and cloud-scale apps.
  • Upgrade path from 10Gb networks: Ideal for customers migrating from older 10Gb networks, offering a straightforward transition to 25GbE with proven Lenovo ThinkSystem reliability and support.

Technical Details of Lenovo ThinkSystem QLogic QL41262 PCIe 25Gb 2-Port SFP28 Ethernet Adapter

  • Network interfaces: 2 x SFP28 25GbE ports for flexible, high-bandwidth connectivity in data center networks.
  • Host interface: PCIe Gen3 x8, delivering ample bandwidth to support multi-stream traffic and RDMA offloads.
  • RDMA support: Universal RDMA with RoCE, RoCE v2, and iWARP, enabling low-latency data transfers and CPU offload for storage and compute workloads.
  • Form factor: PCIe Add-in Card designed for Lenovo ThinkSystem servers, with enterprise-grade reliability and long lifecycle support.
  • Media and optics compatibility: SFP28 optics and cables compatible with 25GbE networks; media types and transceivers to be selected to fit the network environment.
  • Virtualization readiness: Optimized for virtualized deployments, supporting high-density VMs and containerized workloads with efficient I/O handling.
  • Environment and compatibility: Validated for Lenovo ThinkSystem ecosystems and capable cross-functionality with compatible PCIe servers that support 25GbE SFP28 adapters.

How to install Lenovo ThinkSystem QLogic QL41262 PCIe 25Gb 2-Port SFP28 Ethernet Adapter

  • Power down the server and disconnect it from power. Ground yourself to avoid static discharge and open the chassis according to your maintenance procedures.
  • Locate an available PCIe slot that meets the card’s requirements (preferably PCIe Gen3 x8 or higher) and carefully insert the QL41262 into the slot. Secure the bracket with the appropriate screw to ensure a stable fit.
  • Attach the dual SFP28 cables or optics to the two ports, ensuring the media is compatible with your network fabric (fibre or copper as appropriate). Route cables neatly to avoid tension on the connectors.
  • Power on the server. Install the necessary QLogic/ThinkSystem drivers if required for your operating system. Follow Lenovo’s guidance for driver and firmware updates to ensure optimal performance and RDMA functionality.
  • Verify hardware recognition in the OS (for example, by using system information commands or device managers). Configure RDMA settings (RoCE, RoCE v2, iWARP) if your workload or switch fabric requires it, and perform a basic connectivity test to confirm link status and throughput.
  • Optionally enable and configure media-specific features, QoS, and virtualization-related settings as part of your data center strategy. Validate performance with a throughput benchmark and confirm stable operation under your typical workloads.

Frequently asked questions

  • What is the Lenovo ThinkSystem QLogic QL41262? It is a high-performance, dual-port 25GbE PCIe network adapter based on QLogic technology, designed for Lenovo ThinkSystem servers with support for advanced RDMA features.
  • What kind of ports does it have? It features two SFP28 25GbE ports, enabling flexible uplinks and efficient 25Gb networking within data centers.
  • Which RDMA options are supported? Universal RDMA with RoCE, RoCE v2, and iWARP, providing low-latency, CPU-offloaded networking for demanding workloads.
  • Is this adapter suitable for upgrading from 10Gb networks? Yes. It offers a straightforward upgrade path from existing 10Gb environments, helping you scale bandwidth with minimal disruption while maintaining enterprise-grade reliability.
  • What systems is it certified for? It is designed for Lenovo ThinkSystem servers, with validation and support aligned to Lenovo enterprise ecosystems and data center deployments.
  • What operating systems are supported? The adapter is compatible with standard enterprise operating environments used in data centers; drivers and firmware updates are available through Lenovo/QLogic channels as part of your deployment.
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 35621479726

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4.2 ★★★★★
Based on 9 reviews
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LaJune
Chelsea, US
★★★★★ 5
Excellent toy for active dogs! Five ⭐️
Color: Green
⭐⭐⭐⭐⭐ Excellent Toy for Active Dogs! This is my second time purchasing this toy, and it absolutely deserves five stars. My youngest dog, Captain, is a very active 3-year-old with more energy than I can keep up with. He loves being able to sink his teeth into this squeaky toy, and it helps keep him mentally stimulated and entertained. What I love most is that he also shares it with his older brother, Kane. They use it for tug-of-war, which helps burn off some of Captain’s endless energy and keeps both dogs engaged. It does a great job reducing boredom, especially for highly active dogs. The first one lasted several months before needing replacement, which is impressive considering how much it was used. If you have energetic dogs that need something durable and fun, I highly recommend this toy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
A
Verified Purchase
Amanda
Carnegie, US
★★★★★ 5
Perfect Pup Pal
Color: Green
I purchased this dog toy as a birthday gift for a friend's dog, and it exceeded all expectations. Knowing she is particular about toys and easily frightened by many, I spent quite some time choosing the perfect one. From the moment she took it out of the box, she adored it. Everyone at her birthday party was amazed. Watching her happily play with her new toy, which we've come to call Allie, is truly heartwarming. The quality is outstanding. It is well made, safe, and nearly indestructible, yet gentle enough on her mouth. I will definitely be buying more from this store.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
F
Verified Purchase
Fashionista21
Los Angeles, US
★★★★★ 5
Awesome toy!! Labrador Retriever approved
Color: Green
I bought this for my nephew’s Labrador retriever. He pulled it out of the bag and immediately started taking it around for everyone to throw around and play tug a war with. He played with it for hours outside (it definitely needed washing lol). Its durable showed no signs of tearing. I would definitely recommend this!!
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Reviewed in the United States on June 2, 2026
M
Verified Purchase
Meighan
Pawtucket, US
★★★★★ 4
Cute but not for a super chewer
Color: Green, Color: Green
It’s a super cute toy. My boy loves the squeaker toys and he’s a fast chewer. Unfortunately for him, he tore it up within 24 hours. It’s definitely not for super chewers but he had a good time with it while it lasted!
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Reviewed in the United States on March 27, 2026
M
Verified Purchase
Maria Peters
Massapequa, US
★★★★★ 5
Durable & Leather. For Small-Medium Dogs
Size: 15 in, Color: Retriever, Size: 15 in, Color: Retriever
This is a great dog toy! My Pomeranian is a small guy at only 8lbs. but he sure knows how to chew and he does it as often as he can. I was throwing out toy after toy because he was tearing them to pieces after only a half hour or so. After putting my money in the garbage so many times, I decided to search for toys that would hold up to his destructive mouth. I found a lot that claimed they wouldn't fall apart but they were all more than I wanted to spend. I came across this toy and a rabbit shaped one just like this. I bought both months ago and both are still in tact after all this time. Sure the edges are a little frayed but other than that, no damage whatsoever! I'm not sure what dura fused means but that seemed promising to me when I was reading the description, also the fact that they're leather made them seem more durable to me. Both have squeakers inside and some sort of stuffing as well. I throw all of my dogs toys in the laundry or hand wash them once a week, except for these. When these toys get wet with my dogs saliva, they look like they're not meant to get wet. Even without washing, these seem fine. This toy is probably about 9" long or so if I had to guess. In my opinion, it'd be perfect for a medium sized dog. It's a tiny bit big for my little guy but he manages just fine! If you're looking for a durable toy that your small to medium dog can chew on constantly, look no further!
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Reviewed in the United States on February 3, 2020

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