Lekuo PR27F12 10G SFP+ fiber network card with Realtek RTL8127 chipset, PCIe 4.0 interface, ultra-low 1.79W power consumption. Supports 10GBASE-R/SR/LR modules for NAS, data centers, virtualization. Compatible with TrueNAS, Proxmox, ESXi.
ModelPR27F12
Input InterfacePCIe
Output InterfaceSFP+
Motherboard SlotPCIe X4,X4, X8, X16
Transmission Rate10Gbps
Auxiliary AccessoriesLow Profile Bracket
Product Size79x45mm
The Lekuo PR27F12 is a high-performance 10-gigabit fiber network adapter powered by the Realtek RTL8127 chipset. Designed for enterprise data centers, NAS storage systems, and high-bandwidth server applications, this card delivers true 10Gbps fiber optic connectivity through a standard SFP+ interface with industry-leading 1.79W ultra-low power consumption.
ULTRA-LOW POWER CONSUMPTION: INDUSTRY-LEADING 1.79W At just 1.79W during 10GBASE-R operation, the PR27F11 consumes 75-80% less power than comparable Intel X520/X710 SFP+ cards (7-10W typical). This translates to: - Lower heat output (passive cooling sufficient, no fan required) - Reduced electricity costs for 24/7 server operation - Extended component lifespan due to minimal thermal stress - Ideal for thermally-constrained environments and dense server racks
LONG-DISTANCE FIBER CONNECTIVITY: BEYOND COPPER LIMITATIONS Unlike 10GBASE-T copper cards limited to 100 meters, the PR27F11 with SFP+ fiber modules enables: - 300 meters with OM3/OM4 multimode fiber (10GBASE-SR) - 10 kilometers with OS2 single-mode fiber (10GBASE-LR) - 40 kilometers with extended-reach modules (10GBASE-ER) - 80+ kilometers with ultra-long-reach ZR/ZX modules
This makes it the ideal solution for inter-building connections, campus networks, data center rack-to-rack cabling, and metropolitan area networks where copper cannot reach.
Key Features
• Supported bus width: PCIe 4.0 x1 (compatible with X1/X4/X8/X16)
• Maximum data rate per lane: 16.0 GT/s
• Supported network speeds: 10G/1000M LAN
• Standard typical operating power consumption (per port): 10GBASE-R (1.79W), 10GBASE-R (0.92W)
• Supports Wake-On-LAN
• Supports legacy PXE (minimum support) and EFI PXE
• Compliant with IEEE standards: IEEE 802.3, IEEE 802.3z; supports IEEE 802.1P Layer 2 priority encoding; supports IEEE 802.1Q VLAN tagging; supports IEEE 802.1ad dual VLAN; supports IEEE 802.3ae (10G Base-R)
• Supports full-duplex flow control (IEEE 802.3x)
• Supports jumbo frames up to 16KB
• Operating temperature range: 0°C to +70°C
• Storage temperature range: -55°C to +125°C
System Requirements
• Windows 11 / 10
• Linux kernel 2.4.x and 2.6.x or higher
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