This is TSPEC brand RCA Y Splitter
This one is two male and one female splitter. Great for when you want to hook one rca into two rca plugs. Like when your headunit only has one rca cable, or splitting between two amps. 
 
2-channel
1F-2M
Dual twist for improved noise rejection
Ultra-flexible PVC blended jacket
Patented high tolerance compact machined metal end
Quad split tip for maximum contact area
Made with BC-5W2 marine-grade cable