Network Interface Card FUJITSU S26361-F3953-L21 10/100/1000 Mbps Gigabit Ethernet

FUJITSU S26361-F3953-L21 is a PCIe network interface card designed for wired gigabit Ethernet connectivity at 10/100/1000 Mbps. Intended for installation in servers and workstations, this card provides a stable, low-latency connection suitable for data transfer, network access and remote management over standard Ethernet infrastructure. The card supports full- and half-duplex modes and integrates with common operating systems and network stacks used in enterprise and small office environments.

Advantages

The network card delivers reliable wired performance with gigabit throughput, reducing packet loss and providing consistent latency for critical applications. Its PCIe form factor enables straightforward installation into compatible server and workstation motherboards. Designed for compatibility with standard Ethernet switches, routers and cabling, the card simplifies integration into existing networks while offering improved throughput compared to Fast Ethernet solutions.

Suitable for

• Enterprise servers and rack-mounted systems requiring gigabit network interfaces
• Workstations used for file transfers, virtualization, or network-intensive applications
• Small office/home office (SOHO) environments upgrading to wired gigabit connectivity
• Remote management and out-of-band access where stable wired connection is needed

Key specifications

• Interface: PCI Express (PCIe) card
• Network speed: 10/100/1000 Mbps (Gigabit Ethernet)
• Media support: standard twisted-pair Ethernet over RJ-45
• Duplex: full-duplex and half-duplex support
• Operation: supports standard Ethernet frames and auto-negotiation
• Form factor: low-profile bracket compatibility for compact systems (where applicable)

How to use

Power down the host system and unplug it from the mains before installing the card. Open the chassis, insert the PCIe network card into an available PCI Express slot, and secure it with the bracket screw. Reassemble the chassis, connect an Ethernet cable from the RJ-45 port to a switch or router, and power on the system. Install or verify that the appropriate network drivers are present in the operating system; many modern systems will detect the card automatically and configure network settings through the OS network manager or server management tools. Configure IP addressing, DNS and any VLAN or teaming settings as required by the network environment.

Usage recommendations

For reliable performance, use quality Cat5e or Cat6 cabling and maintain proper switch port configuration. Keep firmware and drivers up to date according to the system vendor or operating system vendor guidance. In server environments, consider link aggregation or VLAN configuration where higher throughput or traffic segmentation is needed.