Cisco UCS 6248UP 32-Port 10GbE SFP+ Fabric Interconnect Switch UCS-FI-6248UP Front brackets only . 

Taken from a working environment tested and is in working order.. I have a pair of these and both units setup as  switch functioning strictly as a UCS Fabric Interconnect but can easily be changed to standalone.

TT-A(nxos)# sh inv

NAME: "Chassis", DESCR: "UCS 6248 Series Fabric Interconnect"
PID: UCS-FI-6248UP     , VID: V01 , SN: SSI182105FE

NAME: "Module 1", DESCR: "O2 32X10GE/Modular Universal Platform Supervisor"
PID: UCS-FI-6248UP     , VID: V01 , SN: FOC183134TS

NAME: "Fan 1", DESCR: "Chassis fan module"
PID: UCS-FAN-6248UP    , VID: N/A , SN: N/A

NAME: "Fan 2", DESCR: "Chassis fan module"
PID: UCS-FAN-6248UP    , VID: N/A , SN: N/A

NAME: "Power supply 1", DESCR: "AC power supply"
PID: UCS-PSU-6248UP-AC , VID: V02 , SN: ART18181166

NAME: "Power supply 2", DESCR: "AC power supply"
PID: UCS-PSU-6248UP-AC , VID: V02 , SN: ART181811BF

NAME: "Module 3", DESCR: "O2 Non L3 Daughter Card"
PID: UCS-FI-DL2        , VID: V02 , SN: FOC18201JXV


TT-A /fabric-interconnect # ext [Kit
TT-A# scope license
TT-A /license # show usage
Feat Name                      Scope Default Total Quant Used Quant Subordinate 
Quant    State                Peer Count Comparison   Grace Used
------------------------------ ----- ------- ----------- ---------- ------------
-------- -------------------- ----------------------- ----------
ETH_PORT_ACTIVATION_PKG        A     12      24          0          0           
         Not Applicable       No Peer                 0
ETH_PORT_C_ACTIVATION_PKG      A     0       0           0          0           
         Not Applicable       No Peer                 0
ETH_PORT_ACTIVATION_PKG        B     0       0           0          0           
         Not Applicable       Unknown                 0
ETH_PORT_C_ACTIVATION_PKG      B     0       0           0          0           
         Not Applicable       Unknown                 0