A4 TECH X7 - R4 Vs. Razer Ouroboros

	X7 - R4	Ouroboros
Specification:
No. of Buttons:	7	11
No. of Macro Keys:
No. of Game Profiles:
Connection:	USB and Wireless, 2 AA alkaline batteries	Wired/Wireless
Cable length:
Wireless:
Battery Type:
Battery Life:
Colour:	Black	Black
Ambidextrous:	No	Yes
Coating:
Software:	Yes	Synapse 2.0
Weights:	No	No
Switch:
Feet:
Encoder:
Sensor:
Type:	Optical	Laser
Brand:		Avago
Model:		ADNS-S9818
Processor:
Lift off distance:
DPI/CPI:	100 to 3000 CPI (5 free-adjustable levels)	upto 8200dpi
Memory Size:	160 K
Max tracking speed:	75 ips	upto 200ips
Max acceleration:	30 G	50G
Polling Rate:	125, 250, 500Hz (2 ms)
FPS:
NVIDIA Reflex:
Lighting:
Colour Options:		Green
Lighting Effect:
Dimensions & Weight:
Dimension (LxWxH):		122 to 137 x 71 x42 mm
Weight (grams):		115 to 135
Weight w/o cable:
	Also compared to: Ouroboros Deathadder 2013 F5 DeathAdder Elite G Pro Flick G1 G502 Hero Basilisk Essential G502 Lightspeed ROG Gladius II Origin Sensei Ten DeathAdder V2 Rival 3 TUF Gaming M5 Rival 3 Wireless Pulsefire Haste	Also compared to: Deathadder 2013 F2 X7 - R4 Argon MX Master DeathAdder Elite Naga Trinity Viper V570 RGB FK2 G502 Lightspeed Viper G305 Lightspeed Wireless Viper Ultimate Kone AIMO Remastered Basilisk X Hyperspeed V2M

X7 - R4

The X7 - R4 by A4 TECH uses an Optical sensor, providing a DPI/CPI range of 100 to 3000 CPI (5 free-adjustable levels). This results in a tracking speed of 75ips, and a maximum acceleration of 30 G. It uses a USB and Wireless, and takes 2 AA batteries.

Ouroboros

The Ouroboros by Razer uses a Laser sensor from Avago, specifically the ADNS-S9818, providing a DPI/CPI range of up to 8200dpi. This results in a tracking speed of up to 200ips, and a maximum acceleration of 50G. It uses a Wired/Wireless connection. The Ouroboros is considered to be an ambidextrous mouse. It weighs in at 115 to 135 grams with the cable and is approximately 122 to 137 x 71 x42 mm (LxWxH).