When comparing Razer Lachesis vs Thermaltake Ventus X 2015, the Slant community recommends Razer Lachesis for most people. In the question“What is the best gaming mouse?” Razer Lachesis is ranked 74th while Thermaltake Ventus X 2015 is ranked 88th. The most important reason people chose Razer Lachesis is:
Helps prevent kinking, curling and protects the cable prolonging life of mouse.
Specs
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Pros
Pro Braided cable
Helps prevent kinking, curling and protects the cable prolonging life of mouse.
Pro Ambidextrous
The Razer Lachesis is an ambidextrous mouse.
Pro Shape and size good for medium to large hands
The Razer Lachesis is a great mouse for those with large hands. With the hump where the users palm rest being a bit further back than a lot fo other mice it makes a good fit for those large hands.
Pro Custom color lighting
Using Razers Synapse software users can customize their color lighting.
Pro On the fly DPI switching
There are two buttons under the scroll wheel that allow for on the fly DPI switching.

Pro Fast response, fast tracking
With a 5700 DPI and a polling rate that ranges from 125-1000 the Thermaltake Ventus X 2015 allows for accurate tracking and response time. Making for a good mouse to use in first person shooters as well as daily activities.
Pro Ergonomic
The ergonomic right handed design allows for a comfortable palm grip to be used with the device.
Pro Adjustable weight
There are extra weights that users can place into the device to customize the weight of the device.
Cons
Con Horrible lift-off distance
Lift-off distance is advertised as 1mm, which is not true, it's more than half an inch.
Con Unreliable drivers
The mouse freezes, lags and the mouse pointer might even die.
Con Unreliable CPI switcher
On-the-fly CPI scale resets, and sets to wrong settings often.
Con Stiff scroll wheel
The scroll wheel tends to be a bit stiff which may cause inaccurate scrolls.
