This cable has Dual 3.5mm male Connector that be putted into headhone plug, it only Compatible with Hifiman Sundara, Ananda, Arya,HE4XX. HE-400i, HE560,HE-350, HE400SE, HE1000,the latest version HE1000 V2/HE-400i with both 3.5mm plug headphones, it doesn't fit the old.
eBay