A Cash Exercise with Respect to Warrant Shares; And/Or

EXHIBITA

EXERCISE NOTICE
TO BE EXECUTED BY THE HOLDER TO EXERCISE THIS
WARRANT TO PURCHASE COMMON STOCK
GREAT BASIN SCIENTIFIC, INC.

The undersigned holder hereby exercises the right to receive [ ]shares of Common Stock (“Warrant Shares”) of Great Basin Scientific, Inc., a company incorporated under the laws of the State of Delaware (the “Company”), evidenced by its Series C Warrant (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Warrant.

1.Form of Exercise Price. The Holder intends that payment of the Exercise Price shall be made as (mark one):

a “Cash Exercise” with respect to Warrant Shares; and/or

a “Cashless Exercise” with respect toWarrant Shares.

In the event of a “Cash Exercise”, this Exercise Notice and the Aggregate Exercise Price shall be delivered to the Warrant Agent(). In the event of a “Cashless Exercise”, this Exercise Notice shall be delivered to the Company at .

In the event that the Holder has elected a Cashless Exercise with respect to some or all of the Warrant Shares, the Holder represents and warrants that the Exchange Amount is $[]and, if the Company is permitted to elect to issue shares of Common Stock,[]shares of Common Stock are to be delivered to Holder as the Net Number pursuant to such Cashless Exercise, as further specified in AnnexA to this Exercise Notice.

2.Payment of Exercise Price. In the event that the Holder has elected a Cash Exercise with respect to some or all of the Warrant Shares, the Holder shall pay the Aggregate Exercise Price in the sum of $[ ]to the Warrant Agent in accordance with the terms of the Warrant.

3.Delivery of Warrant Shares and Net Number of shares of Common Stock. The Company shall cause the Warrant Agent to deliver to Holder, or its designee or agent as specified below,[]shares of Common Stock in respect of the exercise contemplated hereby. Delivery shall be made to Holder, or for its benefit, to the following address:

Brokerage Firm Name:
DTC#:
Account Number:
Account Holder Name:

Date: ,

Name of Registered Holder

By:
Name:
Title:

Please provide wire instructions if the Company, in its sole discretion decides to settle the cashless exercise in cash:

Bank Name:
Account Name:
Account Number:
Account Number:

Exhibit A-1

ANNEXA TO EXERCISE NOTICE

CASHLESS EXERCISE EXCHANGE CALCULATION
TO BE FILLED IN BY THE REGISTERED HOLDER TO EXCHANGE THIS
WARRANT TO PURCHASE COMMON STOCK FOR COMMON STOCK IN A
CASHLESS EXERCISE PURSUANT TO SECTION1(d) OF THE WARRANT

Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Warrant.

Net Number = (A x B)/C = shares of Common Stock

For purposes of the foregoing formula:

A= the total number of shares with respect to which this Warrant is then being exercised =.

B= Black Scholes Value =.

C= the Closing Bid Price of the Common Stock as of two (2)Trading Days prior to the time of such exercise =.

Date: ,

Name of Registered Holder

By:
Name:
Title:

Exhibit A-1

EXHIBITB

ACKNOWLEDGMENT

The Company hereby acknowledges this Exercise Notice and hereby directs American Stock TransferTrust Company, LLC to issue the above indicated number of shares of Common Stock.

GREAT BASIN SCIENTIFIC, INC.

By:
Name:
Title:

Exhibit A-1