Sapphire is a Graphics card producer that can be used in mining alternative crypto currencies such as Ethereum and Litecoin. SAPPHIRE Technology is a leading manufacturer and global supplier of innovative components and solutions for PC systems for both consumer and professional applications. From its origins in the design and manufacture of state-of-the-art graphics add-in boards, the extensive SAPPHIRE product range has grown to include a broad range of professional and embedded products. Founded in 2001, SAPPHIRE is a privately held global company headquartered in Hong Kong.
Wlink-NET is a Genesis Network (GENX) and Zelcash (ZEL) domestic mining multi-pool with servers in Bosnia. It features a multiple layer security mechanism (3-layers DDOS protection) and it accepts worldwide connections for mining.
Maxhash is multicurrency mining pool for ETH, Ubiq, Expanse and Musicoin. Maxhash pools are highly optimized and hosted on dedicated high-performance servers currently in 2 locations (US & EU) that are fully DDOS protected. The pool features a Prop payment system and a Variable-Fee system - based on pool performance.