D link direct attach cable stacking cable sfp sfp 3 m for xstack dgs 3420 28 dgs 3420 52 dgs 3620 28 dgs 3620 52 ideal for high bandwidth operations this d link dem cb300s 10g passive sfp twinaxial direct attach cable supports speeds of up to 10 gbps while having lower latency and power consumption than other cables types such as 10gbase cx4 and cat6cat6a 10gbase t this makes it an optimal solution for handling high bandwidth transmission within short distances such as inside