1, Screw Mount 4 x 2 Positions Banana Jack Breakout Board Module. 
2, A and B position termianl blocks, maximum current 20 Amp (each position). Pitch 7.62mm/0.3", Wire range 26AWG ~ 10AWG / 4.0mm square, Strip length 8mm. Screws - M3,steel, Cr3+ Zn plated. Pin header and Cage - Brass.
3, A and B position standard 4mm banana jacks, maximum current 20 Amp (each position). Rated voltage 60V.
4, High quality fireproof nylon material mount carrier. Also included are two M3 x 10mm wood screws, you can easily mount it on a wooden board.
5, Package include: 1PCS 4 x 2 positions banana jack breakout module, 2PCS M3 x 10mm wood screws