LETTER OF TRANSMITTAL
to Be Used to Tender Shares of
BLACKROCK SENIOR FLOATING RATE FUND II, INC.
Pursuant to the Combined Offer to Purchase
Dated May 25, 2010
THE EXPIRATION DATE AND WITHDRAWAL DEADLINE IS 4:00 P.M.,
EASTERN TIME, ON THURSDAY, June 24, 2010, UNLESS EXTENDED
PNC Global Investment Servicing (U.S.) Inc.
Attention: BlackRock Senior Floating Rate Fund II, Inc.
P.O. Box 9819
Providence, Rhode Island 02940-8019
BlackRock Advisors, LLC
Telephone Information Number: 1-800-441-7762
Delivery to an address other than that shown above does not constitute valid delivery.
This Letter of Transmittal is to be used only if the stockholder is a record owner of Shares who desires to
effect the tender offer transaction himself or herself by transmitting the necessary documents to PNC Global
Investment Servicing (U.S.) Inc., the Fund’s transfer agent, and does not intend to request his or her broker or
dealer to effect the transaction for him or her. A stockholder who holds Shares in a Merrill Lynch account or
through another broker, dealer, commercial bank, trust company or other nominee is not the record owner
and should instruct his or her financial advisor or such other nominee to effect the tender on his or her
PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY
Ladies and Gentlemen:
The undersigned hereby tenders to BlackRock Senior Floating Rate Fund II, Inc., a closed-end investment
company incorporated under the laws of the State of Maryland (the “Fund”), the shares described below of its
common stock, par value $.10 per share (the “Shares”), at a price equal to the net asset value (“NAV”) per Share
calculated on the Expiration Date (as defined in the Combined Offer to Purchase), in cash, less any applicable
early withdrawal charge, upon the terms and conditions set forth in the Combined Offer to Purchase dated May
25, 2010, receipt of which is hereby acknowledged, and in this Lett