SCSI

A SCSI adapter, or SCSI HBA, facilitates connectivity and data transfer between a host and a peripheral device or storage system as defined by the SCSI set of American National Standards Institute standards for I/O interconnects. A plug-in HBA card typically initiates and sends service and task management requests to a target device, such as a storage drive or array, and receives responses from the target. The terms SCSI adapter and SCSI HBAgenerally refer to parallel SCSI, the predecessor to SAS.

Parallel SCSI devices are connected to a shared bus. The maximum parallel SCSI speed of 320 megabytes per second (MBps) is considered too slow to address the demands of modern computing systems, and performance often degrades as more devices are added to the shared bus. Parallel SCSI HBAs are viewed as outdated technology. Major manufacturers have discontinued production of parallel SCSI HBAs.

SAS was developed to address the limitations of traditional parallel SCSI and allow for higher speed data transfers to and from computer storage devices. Like parallel SCSI, SAS uses the SCSI command set, but the method of data transfer is different. SAS is a point-to-point serial data transport protocol. The introduction of SAS ushered in new terminology to describe the adapters, cables and connection options.

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488765-B21 HP SC08Ge Host Bus Adapter

R1,385.00  Sale R1,336.52
489103-001 HP Sc08ge 8-port Pci-e SAS HBA Adapter 488765-b21 Description: HP SC08Ge Host Bus Adapter Part Number(s) Option Part# 488765-B21 Spare... more info

80pin To 50pin SCSI Adapter

R267.50
80pin SCA-2 to 50pin (SCA-2 - 50-pin) SCSI Adapter  This is an 80pin - 50pin SCSI Adapter SCA-2 80-pin female to 50-pin male SCSI... more info

ADAPTEC - SCSI CONTROLLER - AHA-2940UW/B

R1,193.38  Sale R1,151.61
ADAPTEC - SCSI CONTROLLER - AHA-2940UW/B With the SCSI Card 2940UW Pro, you can connect up to 15 SCSI devices to any IBM-compatible computer with... more info

Adaptec 29320LPE Single Channel Ultra 320 SCSI Controller (22487

R1,893.40  Sale R1,827.13
Adaptec 29320LPE Single Channel Ultra 320 SCSI Controller (2248700-R) This is an Adaptec 29320LPE U320 LVD SCSI Controller PCI Express - New Pull ... more info

Dell 0R5601 Adaptec 39160 Dual Channel U160 SCSI Controller Card


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Dell adaptec U160 SCSI PCI-X HBA Specifications: Category : Ethernet Adapter Part Number : 0R5601 Interface :  Dual Channel U160 SCSI... more info

Dell J4588 / C4372 / 1U295 PERC 4/SC SCSI RAID Controller

R2,002.41  Sale R1,932.33
Dell J4588 / C4372 / 1U295 PERC 4/SC SCSI RAID Controller About this product.. This is a Dell PERC 4/SC Single Channel U320 LVD SCSI RAID... more info

Fujitsu 3 channel Intel i960 PCI RAID Controller D040451-4E-ICL

R450.00
Fujitsu/Mylex 3 channel Intel i960 PCI RAID Controller D040451-4E-ICL, DAC960PL This is a Fujitsu/Mylex 3 channel Intel i960 PCI RAID Controller... more info

HP SC11Xe Host Bus Adapter - New

R2,128.65  Sale R2,054.15
412911-B21 HP SC11Xe Host Bus Adapter - New About this product. This item,  412911-B21 , is the HP retail number for the product described as... more info

LSI LSI22320BCS-HP A6961-60011 PCI-X Dual Channel SCSI Adapter


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LSI LSI22320BCS-HP A6961-60011 PCI-X Dual Channel SCSI Adapter Card U320 LSI LSI22320BCS-HP A6961-60011 PCI-X Dual Channel SCSI Adapter Card U320 ... more info

SCA 80 To 68 Pin Ultra SCSI IIIII LVD-SE Adapter

R321.60
SCA 80 To 68 Pin Ultra SCSI II/III LVD-SE Adapter This is a SCSI SCA 80 80P to Ultra SCSI II/III 68 68P LVD-SE Adapter Converter Card Quick... more info

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