◆Cisco 800M Series ◆ 【Product Model: Serial Number, etc.】 C841M-4X 【Included Items, etc.】 None. Please prepare a power adapter separately. 【Notes】 Initialized. When the power adapter is plugged in, all lights turn on → only the SYS light blinks → the SYS light turns on and stabilizes. This item was confirmed to be working normally until removed, and has only been tested for power-on after initialization. We have not performed any other detailed checks, so we will not accept returns or refunds except for cases where the device does not power on. Although there is no power adapter, we tried a round adapter from a NEC laptop and it worked. There is some wear and tear, but it seems to be in a condition with no particular problems in use. The images are representative, but items in almost the same condition will be delivered. If you need a large quantity, please ask in the question section. We do a basic check for LAN port damage, wire damage, and whether cables can be plugged and unplugged properly (excluding items with error descriptions in the notes). However, as we are not very familiar with networks, we recommend this to those who can perform repairs and initial setup themselves. Please contact the manufacturer for support. We are unable to answer such inquiries.