Published SFF-8661 Rev 2.3
QSFP+ 4X Pluggable Module Page 1
SFF Committee documentation may be purchased in electronic form.
SFF specifications are available at ftp://ftp.seagate.com/sff
SFF Committee
SFF-8661
Specification for
QSFP+ 4X Pluggable Module
Rev 2.3 September 13, 2014
Secretariat: SFF Committee
Abstract: This specification defines the mechanical specifications for the QSFP+
Pluggable Module/Plug Formfactor.
The mechanical dimensioning allows backwards mechanical compatibility between QSFP+
Pluggable Modules and Cable Plugs plugged into most QSFP+ cages which have been
implemented to SFF-8436. The EMI leakage is expected to be similar to that when
QSFP+ modules and cages are mated.
Superior EMI performance can only be expected with mated combinations of Pluggable
modules/Cable plugs and cages.
This specification provides a common reference for systems manufacturers, system
integrators, and suppliers, of module style interconnects. This is an internal
working specification of the SFF Committee, an industry ad hoc group.
This specification is made available for public review, and written comments are
solicited from readers. Comments received by the members will be considered for
inclusion in future revisions of this specification.
The description in this specification does not assure that the specific component
is actually available from suppliers. If such is supplied it shall comply with this
specification to achieve interoperability between suppliers.
Support: This specification is supported by the identified member companies of the
SFF Committee.
POINTS OF CONTACT:
Jay Neer Dan Gorenc I. Dal Allan
Molex Incorporated TE Connectivity Chairman SFF Committee
2222 Wellington Court 3101 Fulling Mill Rd 14426 Black Walnut Ct
Lisle, IL 60532 Middletown PA 17057 Saratoga CA 95070
Ph: 561-251-8016 717-986-3518 Ph: 408-867-6630
jay.neer@molex.com daniel.gorenc@te.com endlcom@acm.org
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