To increase the marketing appeal of a product, it is common practice for manufacturers to create different versions (or specs) of packaging and included documentation for use in different markets. The product itself is typically identical, regardless of the market it is meant for.
On Massdrop, drops noted as "US Spec" contain products that are procured from a US distribution channel. For these products, members can reach out to the manufacturer directly for any warranty claims before contacting Massdrop Support.
Similarly, drops denoted as "International Spec" contain products that are procured from a non-US distribution channel. If a warranty claim is needed for these products, members should contact Massdrop Support directly.