This is a power supply suitable for older Bitmain ASIC crypto-currency miners such as Antminer S7, S9, T9, L3, D3, and others that didn't come with built-in power supplies.
The power supply has 10 PCI-Express connectors. Please note that it does not have any other connectors, such as Molex or ATX. It can supply 1000W when used on a 100-140V circuit and 1800W on a 200-264V circuit (recommended).
The packaging may be opened and re-sealed as we inspected the items and took some pictures.