IBM 09N4076 - Manual (Page 42)

Environmental requirements
The following table lists the environmental specifications for the CD-RW drive. You
can mount the drive vertically or horizontally.
Write/Read speeds
The following table lists the CD-RW drive write/read speeds for different media.
Drive-performance specifications
The following table lists the performance specifications of the CD-RW drive.
Environmental Requirements:
Specification Operational Nonoperational
Temperature
(noncondensing) +5°C to +45°C
(
+41°F to +113°F)
−20°C to +60°C
(
−4°F to +140°F)
Relative humidity
(noncondensing) 10% to 80% 5% to 90%
Drive Write/Read Speeds:
Function Speed
Read (CD-ROM/CD-R disc) 1X, 2X, 4X, 8X, 16X, 14X-32X (CAV)
Read (CD-RW disc) 8X-20X (CAV)
Write (CD-R disc) 2X, 4X, 8X
Write (CD-RW disc) 2X, 4X
Drive performance:
Feature Specification
Burst data transfer rate 16.7 MB 12 per second (ATA PIO Mode 4)
16.7 MB per second (ATA multiword DMA
Mode 2)
33.3 MB per second (UDMA)
Average access time (including latency) 110 ms (14-32X, CAV)
Cache memory (Read/Write) 2 MB
Disc diameter 12 cm (8 cm read-only)
Rotational speed (CD-RW) 4000 rpm
Rotational speed (CD-ROM/CD-R) 7000 rpm
Mean time between failures (MTBF) 120 000 POH (duty 10%)
12 The formatted capacity of 1 MB is approximately 1 000 000 bytes of data.
2-2 IBM 4X/8X/32X CD-ReWritable Internal IDE Option Kit