Will TSA let me take this as a carryon aboard a plane?

I do not see why not, but your dealing with agencies that change like the weather. I would send them an E-Mail with a picture and size of bag. That way you would have a reply to print up and take with you if they say it's ok.

Can the bottom hardware bracket of this cord organizer be removed？

You can take out this bracket so that the cord travel organizer can be placed in the suitcase.

Can you get more of the dividers?

Dear Chris, We appreciate that you need more dividers but unfortunately we cannot offer you more as our products are manufactured as a kit and the number of dividers is specified so no extras are available. If you have any further questions, please feel free to reply. Matein Customer Service Center

Brand	MATEIN
Model Number	125100BLK
Product Dimensions	25.4 x 22.48 x 11.94 cm; 712.14 g
Color	ブラック
Name List for Name Plates	ポータブル、旅行。
Material	レザーコットンエチレン酢酸ビニル (EVA)
Wallpaper Pattern	無地
Laser Class	DIY。, ケーブルオーガナイザーボックス。, コードオーガナイザーボックス。, テックオーガナイザー。, 防水, 電子オーガナイザー。, 電子オーガナイザートラベルケース。, 電子機器オーガナイザー。
Are Batteries Included	No
Item Weight	712 g

Description

Specifications

Common Questions