Many connectors’ solutions are developed and documented in the SFF Committee as SFF Specifications. Most are subsequently incorporated into standards or released as standards by organizations such as the EIA, ANSI, and IEC.

The following abridged list of SFF Specifications includes those referenced by the Serial Attach SCSI, Fibre Channel, Ethernet 802.3 and InfiniBand standards.

SAS
T10 Standard Rate/Channel SFF # Description Bandwidth
SAS 3.0 12Gbps   Will begin Fall 2009 4 x 12G = 48Gbps
SAS 2.1 6Gbps SFF-8643 Internal Mini SAS HD 4i/8i 4 x 6G = 24Gbps
SFF-8644 External Mini SAS HD 4x / 8x (managed cable)
SFF-8436 QSFP+ (managed cable) (38ckt iPass incorporated)
SFF-8087 Internal Mini SAS 4i
SFF-8088 20m Active Unmanaged Copper Cable
SFF-8088 External Mini SAS 4x
10m Passive Unmanaged Copper Cable
SFF-8086 Specified in SFF-8087 & 8088
  Stacked 8088 not in Spec
SFF-8486 Micro SAS 1.8″ HDD Plug / BP & Cable Receptacle
SAS 2.0 6Gbps SFF-8087 Internal Mini SAS 4i 4 x 6G = 24Gbps
SFF-8088 External Mini SAS 4x
  10m Passive Unmanaged Copper Cable
SFF-8086 Specified in SFF-8087 & 8088
  Stacked 8088 not in Spec
SFF-8482 SAS 2.5″ HDD Plug / BP & Cable Receptacle
SFF-8484 Internal SAS 4i
SFF-8470 External SAS 4x (LaneLink)
SAS 1.1 3Gbps SFF-8087 Internal Mini SAS 4i 4 x 3G = 12Gbps
SFF-8088 External Mini SAS 4x
  7m Unmanaged  Passive Copper Cable
SFF-8086 Specified in SFF-8087 & 8088
Stacked 8088 not in Spec
SFF-8482 SAS 2.5″ HDD Plug / BP & Cable Receptacle
SFF-8484 Internal SAS 4i
SFF-8470 External SAS 4x (LaneLink)
SAS 1.0 3Gbps SFF-8482 SAS 2.5″ HDD Plug / BP & Cable Receptacle 4 x 3G = 12Gbps
SFF-8484 Internal SAS 4i
SFF-8470 External SAS 4x (LaneLink)
 
Ethernet
Standard/Specification/MSA Rate/Channel SFF # Description Bandwidth
IEEE 802.3xx 100GBase-CR25 25Gbps TBD Not Started Yet 4 x 25 = 100Gbps
IEEE 802.3ba 100GBase-CR10 10Gbps SFF-8642 CXP 10 x 10G = 100Gbps
Stacked CXP – not in spec
IEEE 802.3ba 40GBase-CR4   SFF-8436 QSFP+ 4 x 10G = 40Gbps
    SFF-8442 Ganged QSFP – In Process  
    SFF-8444 Stacked QSFP – In Process  
QSFP MSA – no longer active   INF-8438 Superseded by SFF-8436 – REF  
IEEE 802.3xx 10GBase-CR   N/A Copper only – Call for interest 1 x 10G = 10Gbps
SFP+ Specifications 10Gbps SFF-8083 SFP+ Connector – In Process 1 x 10G = 10Gbps
    SFF-8431 SFP+ Electrical Spec  
    SFF-8432 IPF (SFP+) Form Factor (Plug/Module)  
    SFF-8433 IPF (SFP+) Ganged Cages – In Process  
    SFF-8443 IPF (SFP+) Stacked/Ganged Cages – In Process  
    SFF-8461 SFP+ Direct Attach Copper Cable – In Process  
XFP MSA   INF-8077i XFI  (Direct Attach Copper Cable & Optical) 1 x 10G = 10Gbps
IEEE 802.3ak 10GBase-CX4 2.5Gbps SFF-8470 CX4 / XAUI  (LaneLink) 4 x 2.5G = 10Gbps
X2 MSA   INF-8476i CX4 / XAUI  
XPAK MSA   INF-8475i CX4 / XAUI  
Xenpak MSA   INF-8474i CX4 / XAUI  
IEEE 802.3an 10GBase-T   N/A RJ 45 / 4TwPr (Cat 6A) 1 x 2.5G encoded = 10Gbps
IEEE 802.3ap Backplane Ethernet   N/A 10G Backplane Ref
IEEE 802.3ab Gigabit Ethernet 1Gbps N/A RJ-45 / 4TwPr (Cat 5e) 1000Base-T  4 x 250M encoded = 1Gbps
 
Fibre Channel
T11 Standard Rate/Channel SFF# Description Bandwidth
FC-PI-5 16Gbps     TBD In Process 1 x 16G = 16Gbps
FC-PI-4 FCoE SFF-8431 SFP+ Specification 1 x 8G = 8Gbps
  8Gbps SFF-8083 SFP+ Connector  
    SFF-8432 IPF (SFP+) Form Factor (Plug/Module)  
    SFF-8433 IPF (SFP+) Ganged Cages – In Process  
    SFF-8443 IPF (SFP+) Stacked/Ganged Cages – In Process  
    SFF-8461 (SFP+)Direct Attach Copper Cable – In Process  
FC-PI-4 8Gbps SFF-8431 SFP+ Specification 1 x 8G = 8Gbps
    SFF-8083 SFP+ Connector  
    SFF-8432 IPF (SFP+) Form Factor (Plug/Module)  
    SFF-8433 IPF (SFP+) Ganged Cages – In Process  
    SFF-8443 IPF (SFP+) Stacked/Ganged Cages – In Process  
    SFF-8461 (SFP+) Direct Attach Copper Cable – In Process  
    SFF-8072 SCA-2 for FC Tape Apps  
FC-PI-3 4Gbps SFF-8421 HSSDC-2 1 x 4G = 4Gbps
    SFF-8424 Dual Row HSSDC2 (not part of PI-3)  
    INF-8074i SFP Transceiver  
    SFF-8084 SFP Connector – In Process  
    SFF-8072 SCA-2 for FC Tape Apps  
FC-PI-2 2Gbps SFF-8420 HSSDC-1 1 x 2G = 2Gbps
    INF-8074i SFP Transceiver  
    SFF-8084 SFP Connector – In Process  
    SFF-8072 SCA-2 for FC Tape Apps  
 
InfiniBand
InfiniBand* Trade Association Specification Rate/Channel SFF # Description Bandwidth
EDR   (Eight Data Rate)     Not started yet  
– TBD 20Gbps TBD   12 x 20G = 240Gbps
– TBD   TBD   4 x 20G = 80Gbps
QDR   (Quad Data Rate)        
IBTA Arch. Vol. 2 Rel. 1.2.1 Annex 6 10Gbps SFF-8642 CXP            12 x 10G = 120Gbps
      Stacked CXP – not in spec  
IBTA Arch. Vol. 2 Rel. 1.2.1 Annex 5   SFF-8436 QSFP+  (38ckt iPass incorporated) 4 x 10G = 40Gbps
    SFF-8442 Ganged QSFP – In Process  
    SFF-8444 Stacked QSFP – In Process  
QSFP MSA   INF-8438 Superseded by SFF-8436 – REF  
DDR   (Double Data Rate)        
IBTA Arch. Vol. 2 Rel. 1.2.1 Annex 6 5Gbps SFF-8642 CXP 12x 5G / 60Gbps
      Stacked CXP – not in spec  
IBTA Arch. Vol. 2 Rel. 1.2.1 Annex 5   SFF-8436 QSFP+  (38ckt iPass incorporated) 4x 5G / 20Gbps
    SFF-8442 Ganged QSFP – In Process  
    SFF-8444 Stacked QSFP – In Process  
IBTA Arch. Vol. 2 Rel. 1.2   SFF-8470 LaneLink 4x 5G / 20Gbps
         
SDR   (Single Data Rate)        
IBTA Arch. Vol. 2 Rel. 1.2.1 Annex 6 2.5Gbps SFF-8642 CXP 12x 2.5G / 30Gbps
      Stacked CXP – not in spec  
IBTA Arch. Vol. 2 Rel. 1.2.1 Annex 5   SFF-8436 QSFP+  (38ckt iPass incorporated) 4x 2.5G / 10Gbps
    SFF-8442 Ganged QSFP – In Process  
    SFF-8444 Stacked QSFP – In Process  
IBTA Arch. Vol. 2 Rel. 1.2   SFF-8470 LaneLink 4x 2.5G / 10Gbps

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