Controller Intel 82599 Speed 10 Gigabit/s Ethernet SFP+ I/O Ports Dual Port Module Type LC Fiber Optic Supports SFP+ SR Optical module, SFP+ LR Optical module, Direct Attached Copper Interface PCI-E Gen2 x8 Form Factor 68 mm x 110 mm Cable 1. SMF up to 10km (LR) 2. MMF 62.5/50um up to 300m (SR) 3. Passive Twin-AX up to 10m (SFP+ Direct Attach) Features PXE boot iSCSI boot Note All specifications are subject to change without prior notice. Support ASUS server motherboard/system : Z10PR-D16 RS700-E9 Series, RS520-E9 Series ,RS700-E8 Series, RS400-E8 Series, RS500-E8 Series, RS520-E8 Series Item Dimension (L inchxW inchxH inch) 3 x 5 x 1