This is a JST-XH 2-6S Balance Board Battery Charger Extend Expansion Board Adapter Converter

• 2-6S battery charger balance board, high quality silicone wires, works with 2S - 6S batteries with a balance plug.
• The adapter plugs into the 6-cell balance port on the charger, and breaks out into the 2S, 3S, 4S, 5S and 6S connectors.
• With this adapter, work with any battery from 2 cells up to 6 cells.
• Size: 60 x 25 x 15mm / 2.36 x 0.98 x 0.59inch; Charge for 2s, 3s, 4s, 5s, 6s Lipo battery, suitable for MEGA Power 860 and 960 charger.
• Package Content: 1 x Expansion Board + 1 x Plug Line.