The space systems offered on CubeSatShop are typically designed for 2-3 years of life time in low earth orbit (500-800 km). However, for complete CubeSats, many parameters can have an impact on this life duration (such as type of orbit, payload, battery cycling, etc...) and could alter the lifetime of CubeSat subsystems. Several products have been designed for much longer lifetime, either expressed in 'years in low earth orbit' or in terms of 'total radiation dose', which will be indicated with the appropriate products. Nevertheless, orbital lifetime needs to be addressed carefully and thoroughly on a mission by mission basis.