When the power grid fails, knowledge becomes your most critical resource — 512GB of offline survival intelligence, secured inside a rugged Faraday dry bag made with independently lab-tested shielding fabric.
A deep offline survival library — no signal, Wi-Fi, or cell tower required. Plug in and pull up what you need in seconds, even far off the grid.
Connect the disk to any wall outlet or USB power bank. Zero setup, no login.
The disk broadcasts a private local hotspot — no internet, no cell tower, no cloud.
Phones, tablets, and laptops browse the library in seconds — all at once.

Plug it into any wall outlet or USB power bank and it broadcasts its own local Wi-Fi hotspot — connect up to 8 devices at once. No internet, no login, no configuration required.

Built from independently lab-tested shielding fabric, it blocks EMF, EMP, and cellular signals — with room for a backup phone, solar panel, and power bank alongside your disk.
"A rabbit hole you can hold in your hand. Thank you for a really useful tool."
— Verified Prepper Disk Customer
"This OFF GRID INTERNET is awesome! There is so much info packed into the Prepper Disk, with room to add even more of your favorite things."
— Verified Prepper Disk Customer
"You need this for your electronic devices. They won't get fried in an EMP attack and they won't get wet either. Plenty of room for tons of devices. Highly recommend!"
— Verified GoDark® Customer
"Well made bag! Better to have it and not need it than need it and not have it."
— Verified GoDark® Customer
No. The Prepper Disk works offline — no SIM card, no cell tower, and no internet connection required. It broadcasts its own local Wi-Fi hotspot that your devices connect to directly.
Any Wi-Fi-capable device can connect — iOS, Android, Windows, Mac, and Linux are supported. Up to 8 devices can connect to the Prepper Disk's local hotspot at the same time. No apps, no accounts, and no configuration required. Old tablets, spare phones, and laptops work out of the box.
GoDark's multi-layer RF shielding fabric is independently lab-tested to meet MIL-STD-188-125-2, the U.S. military standard for High-Altitude EMP (HEMP) shielding. In testing, it exceeds 100dB of signal attenuation — strong protection against EMP events, including solar storms.
Yes. The disk includes offline maps for North America, Europe, and Oceania — including street maps, satellite imagery, and U.S. National Park trail maps. No GPS signal, cell tower, or internet connection is needed to browse them.
Yes — and it costs nothing. The Prepper Disk is updatable through its built-in web interface. Whenever you have an internet connection, refresh your library — Wikipedia, maps, medical guides, and more. Go offline again and it stays accessible.
Two ways: plug it into any standard wall outlet, or connect it to a USB power bank for portable, off-grid use. No built-in battery means you choose your power source based on the situation. (A power bank is not included in this bundle.)
We stand behind our products and offer a 100% Satisfaction Guarantee or your money back.
Free U.S. shipping on this bundle. Ships from the USA.
Shielding fabric independently lab-tested to meet MIL-STD-188-125-2 (High-Altitude EMP).
Off-grid readiness in one bundle — the survival library and the shield that protects it.
Get the Complete BundleSign up for expert tips on privacy, preparedness, and exclusive deals



M-F 9-4pm Pacific
Sign up for expert tips on privacy,
preparedness, and exclusive deals



M-F 9-4pm Pacific
Sign up for expert tips on privacy,
preparedness, and exclusive deals



M-F 9-4pm Pacific