Cart “40pin IO Extender” has been added to your cart. View cart Product Quantity Subtotal RPi Relay Board $14.28 RPi Relay Board quantity × $14.28 RPi Relay Board quantity $14.28 40pin IO Extender $2.56 40pin IO Extender quantity × $2.56 40pin IO Extender quantity $2.56 Update cart Cart totals Subtotal $16.84 Shipment Enter your address to view shipping options. Calculate shipping Country / region Select a country / region… AustraliaAustriaBelgiumCanadaChinaDenmarkFinlandFranceGermanyGreeceHong KongIndonesiaIrelandItalyJapanMacaoMalaysiaNew ZealandNorwayPhilippinesPortugalRussiaSingaporeSouth KoreaSpainSwedenSwitzerlandTaiwanThailandUnited Kingdom (UK)United States (US) State / County City: Postcode / ZIP: Update Total $16.84 Proceed to checkout