【New】Dabbsson Parallel Connection Box DBS2300plus/DBS1300 Exclusive

I purchased this recently, but it didn't suit my needs, so I'm letting it go.
[Product Specifications] Model Number: A20S ● Output Voltage: 100V~, 50/60Hz ● Maximum Input/Output: Max 4000W (DBS2300) Max 2000W (DBS1300) ● Input Voltage: 100V~, 50/60Hz ● Operating Temperature Range: 0℃-40℃ (32℉- 104℉) ● Expandable Capacity: Max 16660Wh (2*DBS2300 + 4*DBS3000B) Max 9460Wh (2*DBS1300 + 4*DBS1700B)
[How to Use] Before connecting two portable power stations in parallel, ensure that the AC power switches of both units are turned off. Insert the parallel connection cable of the parallel connection box into the parallel connection ports of the power stations. It is recommended to connect in parallel when the remaining battery levels of both power stations are roughly the same. If one power station has a significantly lower battery level, parallel connection may fail, so please be aware of this.
[Maximum Output] Plug in electrical devices according to their rated power into the appropriate output ports. Multiple output ports can be used to power multiple electrical devices simultaneously. When DBS2300plus units are connected in parallel, the maximum output of the two output ports is 3000W, and the maximum output of the two output ports is 2000W. When using multiple output ports simultaneously, the total maximum output cannot exceed 4000W. When DBS1300 units are connected in parallel, the maximum output of each output port is 2000W.