

I've noticed that all the various NerveGear iterations in _Sword Art Online_
have three LED's on the left side, labeled POW, WAN, and BLK.

[![enter image description
here](https://i.stack.imgur.com/3LwSQ.jpg)](https://i.stack.imgur.com/3LwSQ.jpg)

I think it's safe to say that POW is the power, and WAN is the [internet
connection](https://www.networkworld.com/article/3248989/lan-wan/wide-area-
networks-what-wans-are-and-where-theyre-headed.html). What is BLK?


CC BY-SA 4.0
2018-10-22T14:31:38.137
49316
2023-07-25T00:25:35.103
2018-10-22T15:26:11.773
2516
31731
question
sword-art-online
What does the LED on the NerveGear mean?


There is nothing confirmed as of now, however we can see that the most
applicable name to give according to online discussions is Brain LinK (BLK)

The blinking may suggest a weak link or solid colored a firm connection and so
on.


CC BY-SA 4.0
2019-02-17T19:18:47.077
50872
2019-02-18T13:12:26.773
2019-02-18T13:12:26.773
1458
44799
49316
answer


You see it in season 2, episode 12, 16 minutes in. When Kirito is fighting
death gun, Asuna enters his room and the BLK light is blinking blue.
Therefore, BLK is the Brain LinK in it's activated mode.


CC BY-SA 4.0
2023-07-25T00:25:35.103
68169
2023-07-25T00:25:35.103
72841
49316
answer