SFF-8644
E200256
SFF-8644 is a high-density external mini-SAS HD connector standard commonly used for connecting Serial Attached SCSI (SAS) and related high-speed storage interfaces.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SFF-8644 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1773471 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SFF-8644 Context triple: [SAS, physicalConnectorType, SFF-8644]
-
A.
SFF-8482
SFF-8482 is a standardized internal connector interface designed specifically for Serial Attached SCSI (SAS) drives, allowing compatibility with both SAS and SATA devices in enterprise storage systems.
-
B.
RJ45
RJ45 is a standardized 8-pin modular connector commonly used for terminating Ethernet network cables in computer and telecommunications networking.
-
C.
10GBASE-SR
10GBASE-SR is a 10 Gigabit Ethernet standard for short-range data transmission over multimode fiber, commonly used in data centers and enterprise networks.
-
D.
XFP
XFP is a compact, hot-swappable 10 Gigabit optical transceiver module form factor commonly used in high-speed Ethernet and fiber-optic communication links.
-
E.
10GBASE-T
10GBASE-T is an Ethernet standard for transmitting 10 gigabits per second over twisted-pair copper cabling, commonly used for high-speed local area networks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SFF-8644 Target entity description: SFF-8644 is a high-density external mini-SAS HD connector standard commonly used for connecting Serial Attached SCSI (SAS) and related high-speed storage interfaces.
-
A.
SFF-8482
SFF-8482 is a standardized internal connector interface designed specifically for Serial Attached SCSI (SAS) drives, allowing compatibility with both SAS and SATA devices in enterprise storage systems.
-
B.
RJ45
RJ45 is a standardized 8-pin modular connector commonly used for terminating Ethernet network cables in computer and telecommunications networking.
-
C.
10GBASE-SR
10GBASE-SR is a 10 Gigabit Ethernet standard for short-range data transmission over multimode fiber, commonly used in data centers and enterprise networks.
-
D.
XFP
XFP is a compact, hot-swappable 10 Gigabit optical transceiver module form factor commonly used in high-speed Ethernet and fiber-optic communication links.
-
E.
10GBASE-T
10GBASE-T is an Ethernet standard for transmitting 10 gigabits per second over twisted-pair copper cabling, commonly used for high-speed local area networks.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
SFF specification
ⓘ
connector standard ⓘ |
| applicationDomain |
data centers
ⓘ
enterprise storage ⓘ high-performance computing storage ⓘ |
| cableType | shielded copper cable ⓘ |
| comparedTo | SFF-8088 has higher port density ⓘ |
| connectorType |
external
ⓘ
high-density ⓘ mini-SAS HD ⓘ |
| definedBy | Small Form Factor Committee ⓘ |
| governs |
electrical interface for external mini-SAS HD connectors
ⓘ
mechanical dimensions of external mini-SAS HD connectors ⓘ pin assignments for external mini-SAS HD connectors ⓘ |
| hasAlternativeName |
external mini-SAS HD
ⓘ
mini-SAS HD external connector ⓘ |
| isExternalVersionOf | SFF-8643 ⓘ |
| mechanicalFormFactor | miniature high-density plug and receptacle ⓘ |
| optimizedFor |
high bandwidth per connector
ⓘ
high port density on host and enclosure ⓘ |
| replaces | SFF-8088 ⓘ |
| standardCategory |
I/O interconnect
ⓘ
storage interface connector ⓘ |
| supportsDataRate |
multi-lane aggregate bandwidth
ⓘ
up to 12 Gbit/s per lane (SAS-3) ⓘ up to 6 Gbit/s per lane (SAS-2) ⓘ |
| supportsFeature |
active cable assemblies
ⓘ
multi-lane aggregation ⓘ passive cable assemblies ⓘ |
| supportsInterface |
PCIe (via protocol-specific implementations)
ⓘ
SAS ⓘ SATA (via SAS backplane compatibility) ⓘ |
| supportsLaneCount |
4 lanes
ⓘ
8 lanes (via multiple ports) ⓘ |
| supportsTopology |
expander-based SAS topologies
ⓘ
point-to-point ⓘ |
| usedFor |
SAS-2
ⓘ
SAS-3 ⓘ Serial Attached SCSI ⓘ external storage connections ⓘ high-speed storage interfaces ⓘ |
| usedIn |
HBA external ports
ⓘ
JBOD enclosures ⓘ RAID systems ⓘ disk enclosures ⓘ external SAS expanders ⓘ storage arrays ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SFF-8644 Description of subject: SFF-8644 is a high-density external mini-SAS HD connector standard commonly used for connecting Serial Attached SCSI (SAS) and related high-speed storage interfaces.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.