1. Module box design, easy for wiring configuration 2. Glass fiber reinforced nylon base and shell high mechanical strength and durability 3. is removable for barrier- wiring and reasonably stores the wires inside the vehicle and ship. 4. Product use: The middle M10 is connected to the negative pole of the device, and the M10 at both ends is connected to the negative pole of the battery; small currents are collected from each device, such as 3A 5A 10A 8A... Integrate a thick line to collect a current within the range of 200A. to the battery. 5. Product function: It plays the role of storing a negative wire harness in cars, ships and yachts. It brings the negative wires together to make storage more beautiful. Allow terminating of heavy-duty cables for one or more connections (each terminal) Removable insulation partition included Heavy duty terminal studs (up to M10), allowing current up to 200A (rating determined by wires connected) Terminal Studs available in M10 Removable windows for unobstructed wiring Blank write-on space on the top allows easy labeling for each branch [Product role]:The wire harness together, reasonable storage of car and boat inside [Applicable scope]:Automobile, RV, ship, yacht and other Max Operating Voltage:DC 48V Max Amp per circuit:Determined by wires connected Colour:Black Material:Nylon + fiberglass Size:(L x W x H) 138 x 69 x 44.5mm, Terminal Stud Size:4 x M10 (3/8inch) Package Contents: 1 * Stud Distribution Block Busbar