HP 255 G7 User Manual

Hard drive specications
Table 10-5 Hard drive specications
2-TB* 1-TB* 500-GB*
Dimensions
Height 7.2 mm or 9.5 mm 7.2 mm or 9.5 mm 7.0 mm
Length 100.4 mm 100.4 mm 100.6 mm
Width 69.9 mm 69.9 mm 70.1 mm
Weight 130.0 g 107.0 g 92.0 g
Interface type SATA SATA SATA
Transfer rate
Synchronous (maximum) 300 MB/sec 300 MB/sec 300 MB/sec
Security ATA security ATA security ATA security
Seek times (typical read, including setting)
Single track 2.0 ms 2.0 ms 3 ms
Average (read/write) 12 ms 12 ms 13 ms
Maximum 22 ms 22 ms 24 ms
Logical blocks 3,907,029,168 1,953,525,168 1,048,576,000
Disk rotational speed 5400 rpm 5400 rpm 5400 rpm
Operating temperature 0°C to 60°C (32°F to 140°F)
*1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less.
NOTE: Certain restrictions and exclusions apply. Contact technical support for details.
Hard drive specications 81

HP 255 G7 Specifications

General

Form factor	Clamshell
Product type	Laptop
Product color	Black
Country of origin	China
Panel type	SVA
Color gamut	45 %
LED backlight	Yes
RGB color space	NTSC
Display diagonal	15.6 \
Anti-glare screen	Always gives an optimal view, even in direct sunlight.
Display brightness	220 cd/m²
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
sRGB coverage (typical)	67 %
Display diagonal (metric)	39.6 cm
Memory slots	1x SO-DIMM
Internal memory	4 GB
Memory clock speed	1866 MHz
Memory form factor	SO-DIMM
Internal memory type	DDR4-SDRAM
Maximum internal memory	- GB
Memory layout (slots x size)	1 x 4 GB
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD±RW
Total storage capacity	500 GB
Compatible memory cards	SD, SDHC, SDXC
Number of HDDs installed	1
Discrete graphics card model	Not available
On-board graphics card model	AMD Radeon R4
On-board graphics card base frequency	686 MHz
Number of built-in speakers	2
Antenna type	1x1
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth version	4.2
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN controller model	Realtek RTL8821CE
Ethernet LAN data rates	10, 100, 1000 Mbit/s
WLAN controller manufacturer	Realtek
HDMI version	1.4b
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0
Pointing device	Trackpad
Operating system architecture	64-bit
Sustainability certificates	ENERGY STAR
AC adapter power	45 W
Battery weight	180 g
Battery capacity	41 Wh
Number of battery cells	3
HP segment	Business
HP speaker type	HP Dual Speakers
Processor cache	1 MB
Processor model	A6-9225
Processor family	AMD A6
Processor threads	4
Processor frequency	2.6 GHz
Processor cache type	L2
Processor lithography	28 nm
Processor manufacturer	AMD
Processor boost frequency	3 GHz
Thermal Design Power (TDP)	15 W

Weight and Dimensions

Depth	246 mm
Width	376 mm
Height	22.5 mm
Weight	1780 g