These cables are available QSFP to XFP Cable

QSFP to XFP Cable is suitable for very short distances and offer data rates up to 40Gb/s supporting Fiber Channel, Ethernet, SDH/SONET and Infiniband standards to maximize performance. It provides a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks.The nitty gritty details between an QSFP to XFP Cable optics module and an SFP+ optics module are fairly straight forward.  For XFP, on the transmit side of things, the optics module standard provided additional signal conditioning before it put the signal onto the fiber. Common direct attach cables include SFP cables, SFP+ cables, QSFP to XFP Cable, QSFP+ cables, MIni SAS cables, CX4 cables. These direct attach cables can meet The nitty gritty details between an QSFP to XFP Cable optics module and an SFP+ optics module are fairly straight forward.  For XFP, on the transmit side of things, the optics module standard provided additional signal conditioning before it put the signal onto the fiber.  For SFP, there is no additional signal conditioning provided in the module specification.nitty gritty details between an XFP optics module and an SFP+ optics module are fairly straight forward.  For QSFP to XFP Cable, on the transmit side of things, the optics module standard provided additional signal conditioning before