SECTION 906 CERTIFICATION

Pursuant to 18 U.S.C.ss.  1350, the undersigned officers of Cash Trust Series II
on  behalf  of  Municipal   Cash  Series  II,   Treasury  Cash  Series  II  (the
"Registrant"),   hereby  certify,  to  the  best  of  our  knowledge,  that  the
Registrant's  Report on Form N-CSR for the period  ended  November 30, 2003 (the
"Report")  fully complies with the  requirements  of Section 13(a) or 15(d),  as
applicable,  of the Securities and Exchange Act of 1934 and that the information
contained in the Report fairly presents, in all material respects, the financial
condition and results of operations of the Registrant.


Dated: January 27, 2004

/s/ J. Christopher Donahue

Title: President, Principal Executive Officer



Dated: January 27, 2004

/s/ Richard J. Thomas

Title: Treasurer, Principal Financial Officer

This certification is being furnished solely pursuant to 18 U.S.C.ss. 1350
and is not being filed as part of the Report or as a separate disclosure
document.