SecProbe.io

CORRESP
 1
 filename1.htm

 November
26, 2025

 Office
of Real Estate & Construction

 Division
of Corporation Finance

 U.S.
Securities and Exchange Commission

 100
F Street N.E.

 Washington,
D.C. 20549

 Re: SilverBox
 Corp V
 Registration Statement on Form S-1, as amended
 File No. 333-289783

 Ladies
and Gentlemen:

 In
connection with the above-referenced Registration Statement, and pursuant to Rule 461 under the Securities Act of 1933, as amended (the
 “ Act ”), we hereby join in the request of SilverBox Corp V that the
effective date of the Registration Statement be accelerated so that it will be declared effective at 4:00 p.m., Eastern Time, on Tuesday,
December 2, 2025, or as soon as practicable thereafter.

 Pursuant
to Rule 460 under the Act, please be advised that we expect to distribute approximately 1,000 copies of the Preliminary Prospectus dated
November 12, 2025 (the “ Preliminary Prospectus ”) through the date hereof,
to underwriters, dealers, institutions and others.

 In
connection with the Preliminary Prospectus distribution for the above-referenced issue, the prospective underwriters have confirmed that
they are complying with the 48-hour requirement in Rule 15c2-8(b) under the Securities Exchange Act of 1934, as amended.

 [ Signature
Pages Follow ]

 Very truly yours,

 SANTANDER US CAPITAL MARKETS LLC

 By:
 /s/ Ryan Kelley

 Name:
 Ryan Kelley

 Title:
 Managing Director

 By:
 /s/ Niron Stabinsky

 Name:
 Niron Stabinsky

 Title:
 Managing Director

 As Representative of the several underwriters

 cc: Ilir
 Mujalovic, Allen Overy Shearman Sterling US LLP
 Bill Nelson, Allen Overy Shearman Sterling US LLP

 [ Signature
Page to Acceleration Request Letter ]