Seagate Barracuda 4XL ST34572W 4.5GB Ultra SCSI 68 Pin Hard Drive HDD 7200RPM

Seagate Barracuda 4XL ST34572W 4.5GB Ultra SCSI 68 Pin Hard Drive HDD 7200RPM. TheBarracuda 4XL Family has the following standard features.

Single-ended or differential SCSI drivers and receivers. 8 bit and 16 bit I/O data bus models available. Asynchronous ands ynchronous data transfer protocol.

Firmware downloadable via SCSI interface. Selectable even byte sector sizes from 180 to 4,096 bytes/sector.

Flawed sector reallocation at format time. Programmable auto write and read reallocation. Reallocation of defects on command (Post format).

128 bit Reed-Solomon error correcting code. Sealed head and disc assembly. No preventative maintenance or adjustment required.

Dedicated laser textured head landing zone. Embedded servo data rather than a separate servo data surface.

Self diagnostics performed when power is applied to the drive. Vertical, horizontal, or top down mounting. Active IC terminators enabled by jumpers ("N" and "W" models only). 512 K byte data buffer. Hot plug compatibility(section 9.6.4.3 lists proper host connector needed) for "WC" and "DC" model drives. Level 2 is a factory installed option. Low audible noise for office environment.

Supportsindustry standard Ultra SCSI interface. Programmable multi-segment able cache buffer. Average latency = 4.17 ms. Command queuing of up to64 commands.

Supports start and stop commands (spindle stops spinning). 1,000,000 hour MTBF. Balanced low mass rotary voice coil actuator. Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology S. Incorporates Seek To Improve Reliability algorithm (STIR).