This article covers 10Gbイーサネットコンバージドサーバー SFP+ポートネットワークカード(NIC) PCIE x8対応 Intel X520-DA1 82599ENチップ Windows 7.
Overview
The Lemspum X520DA1 is a 10-gigabit network card built around the Intel 82599EN controller. It offers a single SFP+ port and is designed for data center and server environments. The card uses a PCI Express 2.0 x8 interface and physically fits into x16 slots as well. This NIC supports 10Gbps and 1Gbps data rates, but notably does not support 2.5Gbps or 5Gbps. Hardware offload for FCoE and iSCSI is included, which reduces CPU overhead when handling storage traffic. It's a cost-effective way to add 10GbE connectivity to a desktop or server.
Connectivity & Compatibility
Interface: PCI Express 2.0 x8 (x16 lane compatible) Port: Single SFP+ (supports 10G SFP+ modules, DAC, AOC) Data rates: 10Gbps / 1Gbps (no 2.5G/5G) OS support: Windows 7/8/10/11, Windows Server 2003–2012, Linux, VMware ESX/ESXi, FreeBSD * Brackets included: Low-profile and full-height For Windows 11, you can make it work by properly configuring the Windows 10 driver. Check the installation guide provided by the seller.
Product Info
Released around 2023, the Lemspum X520DA1 is typically priced around ¥8,399 on Japan. It comes with a 3-year warranty and a 30-day free return policy. The package includes the NIC itself and a low-profile bracket. Market positioning: entry-to-mid-range 10GbE NIC. It uses the same Intel 82599EN chip as the official Intel X520-DA1 but at a fraction of the cost. Ideal for budget-conscious users who want to experiment with or deploy 10Gb networking without spending a fortune.
Best Use Cases
Home lab enthusiasts building a 10GbE network: If you need fast transfers between a NAS and hypervisors, this single-port card is an affordable entry point. Just remember you'll also need a 10Gb switch and compatible cables. DIYers repurposing old servers: Add this NIC to a used server to bring it up to modern networking speeds. The included low-profile bracket makes it suitable for 1U/2U chassis. * Storage admins testing iSCSI or FCoE: Hardware offload keeps CPU usage low during storage traffic, making it great for lab validation. For production, consider an Intel-branded card for better support. Not recommended if you need 2.5G/5G support, require multiple ports, or prefer native Windows 11 drivers. Also, the single SFP+ port limits expansion.
Product Disclosure (Amazon)
- Manufacturer: Splensun
- Brand: Lemspum
- Seller: レスプJP
- Fulfilled by: Amazon
- ASIN: B0BXP873WB
- Note: This article covers a manufacturer-made product based on Amazon listing details.
