Specification:Item name: Adapter Card Item size: 8.7 * 3.8cm / 0.34 * 0.15in(L * W * H)Item weight: Approx.19.7g / 0.69ozPackage weight: 83g / 2.93oz Features:Supports high speed PCI-E 1x/4x/8x/16x card.Golden finger protection design.With 3x solid capacitors, making sure power supply more stable and secure.Experienced design and durable material for high frequency and low attenuation.12v, 5v and 3.3v LED indicator design.