This if the MTBF for the supervisors:
WS-X4013+, WS-X4013+TS= 368,800 hours
WS-X4014= 187,922 hours
WS-X4515= 175,630 hours
WS-X4516= 204,196 hours
Here is the information for the blades:
WS-X4124-RJ45= 1,508,850 hours
WS-X4548-GB-RJ45V= 129,440 hours
WS-X4148-FE-BD-LC= 87,344 hours
WS-X4148-FE-LX-MT= 210,112 hours
WS-X4224-RJ45V= 323,958 hours
WS-X4248-RJ21V= 188,380 hours
WS-X4248-RJ45V= 187,594 hours