Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
HP K2Q90AR 6Gb/s SAS,8Gb/s 4GB Fibre Channel Controller
- Interface 1: SAS (Serial Attached SCSI)
- SAS Speed: 6Gb/s per lane
- Interface 2: Fibre Channel (FC)
- FC Speed: 8Gb/s per lane
- Cache Memory: 4GB
- Form Factor: PCIe Add-in Card
- Target Use: Server connectivity, Storage Area Networks (SAN)
K2Q90AR isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Controller Type
- SAS/Fibre Channel Host Bus Adapter (HBA)
- SAS Speed
- 6Gb/s
- Fibre Channel Speed
- 8Gb/s
- Cache
- 4GB
- Interface
- PCIe
- Part Number
- K2Q90AR
Product details
The HP K2Q90AR is a 6Gb/s SAS, 8Gb/s 4GB Fibre Channel Controller. This adapter card provides high-speed connectivity for servers and storage systems, enabling efficient data transfer over SAS and Fibre Channel interfaces.
Technical Information
| Controller Type | SAS/Fibre Channel Host Bus Adapter (HBA) |
| SAS Speed | 6Gb/s |
| Fibre Channel Speed | 8Gb/s |
Additional Specifications
| Cache | 4GB |
| Interface | PCIe |
| Part Number | K2Q90AR |
Description
The HP K2Q90AR is a high-performance Host Bus Adapter (HBA) designed to provide robust connectivity for servers and storage systems. This controller card features dual interfaces: one supporting 6Gb/s SAS (Serial Attached SCSI) and the other supporting 8Gb/s Fibre Channel (FC). SAS is a standard interface for connecting storage devices like hard drives and SSDs to servers, offering high throughput and reliability. Fibre Channel is a high-speed networking technology primarily used for Storage Area Networks (SANs), enabling efficient and low-latency access to shared storage resources. With a substantial 4GB of onboard cache memory, this controller is optimized to handle demanding I/O operations, improving overall system performance by buffering data and reducing latency. The combination of SAS and Fibre Channel interfaces on a single card provides significant flexibility, allowing it to connect to both direct-attached storage (DAS) and SAN environments. This makes it a versatile solution for enterprise servers, storage arrays, and other data-intensive applications. The controller utilizes a PCIe (Peripheral Component Interconnect Express) interface, ensuring high bandwidth communication with the host system's motherboard. The HP K2Q90AR is engineered for reliability and performance, making it a critical component for environments requiring fast, dependable access to storage, such as database servers, virtualization hosts, and high-performance computing clusters.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for K2Q90AR.






