Wishlist Quick view HP hp 674284-B21 Mellanox InfiniBand IB FDR modular line board $2,364.56 $1,630.73 HP - MELLANOX INFINIBAND IB FOURTEEN DATA RATE (FDR) MODULAR LINE BOARD (674284-B21). NEW FACTORY SEALED. IN STOCK. Compare Add to Cart Add to Wishlist