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Original products
Customer review: 9,4
2.632 reviews
Opendime 3-pack kopen
Opendime 3-pack kopen
Opendime kopen
In stock
Ordered before 17:00, your order ships today
  • ✓ Dutch manual
  • ✓ Premium customer-service
  • ✓ Extra option for personal assistance
  • ✓ Customers rate Cryptomaan 9,4/10
  • ✓ Cryptomaan Start app
  • ✓ 2 years super-fast warranty service
  • ✓ Free returns

Product description

The Opendime is a small USB stick which you can use to issue your Bitcoin as a bank note. You can send Bitcoins to the public address of the Opendime. This Opendime address is visible on the blockchain, so that anyone can check the balance. The private key of the Opendime, which is required to spend the Bitcoins on the stick, will only become visible once the Opendime's seal is broken.

You could see this product as a disposable wallet, which you can use the way you use cash. You can give the Bitcoins as a gift or pay someone in Bitcoins in a secure, physical way, and they won't have to worry that the giver can take off with the Bitcoins.

Unique properties:

  • Works like a read-only USB drive. Works on any computer, laptop or phone. The files on the drive contain a QR code and text file containing the Bitcoin address.
  • Ultra safe: the private key is generated on the device itself and has never been seen by anyone else before.
  • After breaking the seal, the private key appears, so that it's easy to check whether the receiver is the only person with access to the Bitcoins.
  • No miner fees or confirmation delay. You can pass the Opendime on as often as you want.


10.0 / 10 (4 reviews)

Clear website, correct speed and honest service. Products were on the mat the day after ordering.

Scott v. (05/21/2019)

Very nice product. Nice as a birthday present or piggy bank for the Kids.

Anonymous (03/16/2019)

This is my very first order from Cryptomaan, and I must say I'm surprised. I was looking for the Opendime 3-pack from Coinkite and did not think that it would already be offered for sale via a Dutch website, but Cryptomaan was the only Dutch shop that had it available in the range, I was surprised, mainly because the product has not been on the market for very long. I hope to find the Coinkite Coldcard at Cryptomaan soon. One thing is certain: I will be ordering from this webshop in the future.

J.C G. (08/29/2018)

Choose for safety.
Choose for Cryptomaan's expertise.

What customers say about us.

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Quick delivery ordered in the evening, delivered the next day. Clear and well-organized website. I absolutely recommend ordering with Cryptomaan.


Easy and quick delivery Quick delivery but also an informative website with info about the purchased product.


I was speedily and professionally helped out and the delivery was quick. My ordered product came in in no time and the questions I was happy with the help I got through chat. Great help. This creates trust.


Quick, good and advantageous Excellent service and handling .. and excellent customer service ..

Ethan Marchel

-Quick and clear ordering process -Well-organised website -Direct shipment -Good packaging, all in all a great experience/service!

D. Mom

They live up to their promises Points for improvement: Keep up the good work!

Henk S

Good product, quick handling and fast delivery. I heartily recommend them!

Annita Adriaens
2.632 Reviews