Cozlink QSFP TO 4 SFP+ DAC are suitable for very short distances and offer a very cost-effective way to establish a 40-gigabit link between QSFP+ and SFP+ ports of IEEE approved switches within racks and across adjacent racks. Cozlink offers QSFP+ TO 4 SFP+ DAC in both passive and active types. The passive QSFP+ TO 4 SFP+ DAC are available in lengths of 0.5, 1, 2, 3, 4 and 5 meters and active QSFP+ TO 4 SFP+ DAC are found in lengths of 7 and 10 meters. Cozlink QSFP+ TO 4 SFP+ DAC is applicable across Fibre Channel, Ethernet, SDH/SONET and few other protocols. This ROHS compliant DAC can operate at industrial temperature range and is made to surpass industrial quality standards. Cozlink QSFP+ TO 4 SFP+ DAC is compatible with brands such as Finisar, Brocade, Cisco and others.