如果您需要大量01KR581产品,请通过我们的免费电话Whatsapp: (+86) 151-0113-5020联系我们,或在在线聊天中请求报价,我们的销售经理会很快与您联系。
Lenovo ThinkSystem QLogic QL45212 Flex 50 Gb 2‑Port Ethernet Adapter (FRU 01KR581)
Keywords
01KR581, QLogic QL45212, ThinkSystem Flex 50Gb adapter, 50 Gb/s Ethernet card, PCIe 3.0 x16 network adapter, RoCE Ethernet adapter, Lenovo QLogic 50Gb network card
Description
The 01KR581 is Lenovo’s official **ThinkSystem QLogic QL45212 Flex 50 Gb 2‑Port Ethernet Adapter**, a high-performance networking card designed for Flex, BladeCenter, and ThinkSystem servers. Based on Cavium’s 8th-gen FastLinQ ASIC, it delivers up to 50 Gb/s speeds via PCIe 3.0 x16, with features like RoCE, RoCEv2, iWARP, SR-IOV, and NIC partitioning for robust virtualization and scaling support .
Available new from resellers like ServerSupply with a 90-day warranty, or refurbished from Renewtech (35+ units, 1-year warranty) the adapter balances cutting-edge networking capability with broad support and cost flexibility.
Withdrawn from active marketing (per Lenovo Press, last updated Sep 30, 2024), it remains highly relevant for legacy and transitional infrastructure moving to 25/50Gb Ethernet while ensuring coexistence with existing 10Gb networks.
Key Features
- Dual 50 Gb/s Ethernet ports over PCIe 3.0 x16
- Support for RoCE, RoCE v2, iWARP, SR‑IOV, and NIC partitioning technologies
- Perfect for Lenovo Flex System, Blade, and ThinkSystem servers
- Backward-compatible with 10/25 Gb networks using flexible speeds
- Designed for virtualization and high-throughput use cases
- Available new (90-day warranty) or refurbished (1-year warranty) options
Configuration
| Attribute | Specification |
|---|---|
| Part Number (PN) | 01KR581 (aka 7XC7A05843) |
| Adapter | QLogic QL45212 Flex 50Gb 2‑Port |
| Host Interface | PCIe 3.0 x16 |
| Network Ports | 2 × 50 Gb/s (Base‑KR, no transceiver needed) |
| Form Factor | Mezzanine / Plug‑in card |
| Technologies | RoCE, RoCE v2, iWARP, SR‑IOV, NPAR |
| Condition | New or Refurbished |
| Warranty | 90 days (new), 1 year (refurbished) |
Compatibility
Fully **Lenovo ServerProven** certified for Flex System chassis (SN550, SN850) and ThinkSystem servers supporting Flex mezzanine cards. Can also interoperate with 10/25/50 Gb Ethernet switches in converged data center deployments.
Works seamlessly with existing 10/25 Gb infrastructure through flexible speed negotiation .
Usage Scenarios
Ideal for high-density virtualization and HPC tools that require ultra-low latency and high throughput—leveraging **RoCE** capabilities for remote memory access acceleration.
Perfect for Flex System networks transitioning to 25/50Gb throughput, ensuring both backward compatibility and future readiness.
Well-suited for enterprise data centers needing multi-tenant network partitioning (NPAR/SR-IOV) with robust HW acceleration in converged storage or compute environments.
Frequently Asked Questions
- Q: Does the QL45212 support RoCE?
A: Yes—it supports RoCE, RoCE v2, and iWARP, enabling low-latency RDMA functionality . - Q: Is it backward-compatible with 10/25 GbE?
A: Yes—Flex architecture auto-negotiates to lower speeds as supported . - Q: What warranty options are available?
A: New units include a 90-day warranty; refurbished Renewtech units include a 1-year warranty. - Q: Which servers does it support?
A: Certified for Lenovo Flex System (SN550/SN850) and ThinkSystem platforms via mezzanine slots .
与此商品相关的产品
-
7Y37A01085 Lenovo ThinkSystem RAID 930-16i 4GB Fla... - 零件编号: 7Y37A01085...
- 库存情况:In Stock
- 状况:全新
- 原价:$599.00
- 您的价格: $499.00
- 您节省了 $100.00
- 立即咨询 发送邮件
-
SQL Svr Ent RUNTIME 2019 IoT ESD OLC 4 Core Ent – ... - 零件编号: SQL Svr Ent RUNTIME ...
- 库存情况:In Stock
- 状况:全新
- 原价:$11,599.00
- 您的价格: $11,399.00
- 您节省了 $200.00
- 立即咨询 发送邮件
-
SQL Svr 标准运行时 2019 IoT ESD OLC 5 Clt 标准... - 零件编号: SQL Svr Std RUNTIME ...
- 库存情况:In Stock
- 状况:全新
- 原价:$729.00
- 您的价格: $689.00
- 您节省了 $40.00
- 立即咨询 发送邮件
-
SQL Svr Ent RUNTIME 2022 IoT ESD OLC 4 Core Ent – ... - 零件编号: SQL Svr Ent RUNTIME ...
- 库存情况:In Stock
- 状况:全新
- 原价:$12,999.00
- 您的价格: $11,999.00
- 您节省了 $1,000.00
- 立即咨询 发送邮件
-
SQL Svr Std RUNTIME 2022 IoT ESD OLC 5 Clt Std – 适... - 零件编号: SQL Svr Std RUNTIME ...
- 库存情况:In Stock
- 状况:全新
- 原价:$799.00
- 您的价格: $749.00
- 您节省了 $50.00
- 立即咨询 发送邮件
-
Win Svr Emb Ent 2008 R2 64 位 EMB ESD OEI DVD 1-8CP... - 零件编号: Win Svr Emb Ent 2008...
- 库存情况:In Stock
- 状况:全新
- 原价:$2,899.00
- 您的价格: $2,799.00
- 您节省了 $100.00
- 立即咨询 发送邮件
-
Win Rmt Dsktp Svcs CAL 2012 x64 EMB ESD OEI 1 Clt ... - 零件编号: Win Rmt Dsktp Svcs C...
- 库存情况:In Stock
- 状况:全新
- 原价:$149.00
- 您的价格: $119.00
- 您节省了 $30.00
- 立即咨询 发送邮件
-
Win Svr Emb Dtcntr 2019 MultiLang ESD OLC 16 核企业服务... - 零件编号: Win Svr Emb Dtcntr 2...
- 库存情况:In Stock
- 状况:全新
- 原价:$5,999.00
- 您的价格: $5,799.00
- 您节省了 $200.00
- 立即咨询 发送邮件
