DVD±RW Double-Layer Combo Drive specifications

Applicable disc

Read:

 

CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM,

 

CD-ROM XA, MIXED MODE CD, CD-I, CD-I

 

Bridge (Photo-CD, Video CD), Multisession CD

 

(Photo-CD, CD-EXTRA, Portfolio, CD-R, CD-RW),

 

CD-R, CD-RW, DVD-ROM (DVD-5, DVD-9,

 

DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R,

 

DVD+RW, DVD-RAM

Write:

CD-R and CD-RW

DVD+R, DVD+RW, DVD-R, DVD- RW, DVD-RAM

Access time

CD

DVD

 

 

 

Random

< 175 ms

< 230 ms

 

 

 

Cache buffer

2 MB

 

 

 

 

Data transfer rate

 

 

 

 

 

24X CD-ROM

3,600 KB/sec

 

 

 

 

 

8X

DVD-ROM

10,800 KB/sec

 

 

 

 

24X CD-R

3,600 KB/sec

 

 

 

 

16X CD-RW

2,400 KB/sec

 

 

 

 

 

8X

DVD+R

10,800 KB/sec

 

 

 

 

 

4X

DVD+RW

5,400 KB/sec

 

 

 

 

 

8X

DVD-R

10,800 KB/sec

 

 

 

 

 

4X

DVD-RW

5,400 KB/sec

 

 

 

 

2.4X DVD+R(9)

2,700 KB/sec

 

 

 

 

 

5X

DVD-RAM

6,750 KB/sec

 

 

 

 

Transfer mode

Multiword DMA Mode

 

 

 

 

 

DVD±RW Double-Layer Combo Drive specifications 137

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HP 4520S DVD±RW Double-Layer Combo Drive specifications, Applicable disc Read, Write, Cache buffer Data transfer rate

4720S, 4520S specifications

The HP ProBook 4720s is a well-engineered business laptop that combines performance, durability, and affordability, making it suitable for professionals and small business owners alike. Introduced as part of the HP ProBook series, this model stands out for its robust build quality and essential features tailored to meet the demands of various work environments.

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Under the hood, the HP ProBook 4720s is equipped with Intel's second generation Core processors. The inclusion of options such as the Intel Core i5 and i7 provides users with the power necessary for demanding applications while maintaining energy efficiency. With up to 8GB of DDR3 RAM, multitasking is seamless, allowing users to run multiple applications simultaneously without experiencing lag.

Storage options are varied, including traditional hard drives and solid-state drives which offer faster data access speeds. This flexibility ensures that users can choose the configuration that best fits their needs, balancing performance and storage capacity.

In terms of connectivity, the HP 4720s offers a range of ports including USB 2.0 and USB 3.0, HDMI, and Ethernet, providing users with versatile options for connecting peripherals and external displays. The integrated webcam and microphone are essential for video conferencing, essential in today’s remote working environment.

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Overall, the HP ProBook 4720s embodies a balance of performance, functionality, and durability. Its features cater well to business users seeking a reliable device, making it a commendable choice in the competitive landscape of laptops. Whether for office use or on-the-go productivity, the HP 4720s delivers a solid computing experience.