When comparing Razer Deathadder 2013 vs Corsair Vengeance M60, the Slant community recommends Razer Deathadder 2013 for most people. In the question“What is the best gaming mouse?” Razer Deathadder 2013 is ranked 10th while Corsair Vengeance M60 is ranked 36th. The most important reason people chose Razer Deathadder 2013 is:
While being mainly designed for palm grips using a claw grip will still work, though with a weird placing for the palm.
Specs
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Pros
Pro Comfortable gaming mouse for palm and claw grips
While being mainly designed for palm grips using a claw grip will still work, though with a weird placing for the palm.
Pro Left- and right-click buttons have a concave that helps fingers stay in place
The users fingers rest easily inside of the concave left and right buttons. By being concaved the users fingers also stay in place.

Pro Affordable
At $50 it's not an expensive gaming mouse for what it offers.
Pro Slightly larger than a common mouse
With dimensions, 127 mm/5.00” x 70 mm/2.76” x 44 mm/1.73”, Deathadder is just a bit bigger than an everyday gaming mouse.
Pro Accurate 6400 CPI optical sensor
The mouse has a 6400 CPI optical sensor with X & Y variable axis. No angle snapping, no acceleration, no prediction.
Pro Two side buttons in an easily accessible yet unobtrusive position
The two left side buttons are position so that they stay unobtrusive yet easily accessible.
Pro Braided cord
Helps prevent kinking, curling and protects the cable prolonging life of the gaming mouse.
Pro True rubber grip helps to get a better hold of the mouse
The mouse has a true rubber grip as opposed to common rubberized or plain plastic grips.

Pro Reliable, notched scroll wheel
High quality scroll wheel.
Pro Reasonably lightweight at 105 grams
The Razer Deathadder 2013 sits at a reasonable weight of 105 grams, which is 8 grams lighter than the previous 3.5 version.
Pro Synapse is well-designed driver software
Synapse can be a useful tool by saving a users setting to the cloud automatically, setting do not need to be remembered upon re-installs or using a friends PC.
Pro Rubber grips are smooth
Pro Left hand edition available
Razer offers a right and left hand edition for the Deathadder model.
Pro Textured thumb rest
There is a textured thumb rest on the left side giving the user an area for their thumb to rest while also providing more grip for moving the mouse.
Pro Sniper button
The included sniper button will instantly decrease the mouses sensitivity while pressed in, giving the player an advantage accurately placing the cursor where it needs to be such as in headshots in an FPS.
Pro Aluminum housing
The M60 features a solid aluminum body at its core for a superior build quality.
Pro 8 programmable buttons
There are 8 fully programmable buttons on the mouse. This includes a 'sniper button' next to the thumb, which by default toggles a shifted DPI to allow for more accurate sniping while gaming.
Pro Adjustable weight and center of gravity
There are 3 removable weights in a triangle formation, allowing you to change not only the weight, but also the center of gravity.
Cons
Con Requires signing in and connecting to a server before the mouse can be used to its full potential
To get the latest drivers or edit settings you have to download "synapse" an "online cloud device updater and profile storage" application. You have to register an account with your email and have it running in the background constantly for changes to take effect.
Con Poor build quality
Con Scroll Wheel may stop working
You can look it up on youtube, there's a video which explains how you can fix it but you'll need to physically open up the mouse and void the warranty.
Con Driver for side buttons in not open source
The mouse has two button for thumb control. The driver for the mouse and is not open source and not available for Linux users.
Con Distracting lights, wich can be turned of this can be done trough the Synapse software
Although the lights on the mouse look nice, they may bother or be distracting to some people. If they are too distracting, they can be turned off but that does require proprietary software that many do not like having installed.

Con Software issues
Using Razer Synapse causes slower boot up times as well as forced online sign in to use which is just a cheap attempt at an always online DRM.
Con Middle click dies way too fast
Several users of this mouse have complained that the middle click doesn't last long, in some cases not even 1 year.
Con Rubber coating
Like all of razer's mice, this one has a rubber coating. Which means that it's hard to clean, will drip oil after long period of disuse and generally less comfortable than hard plastic.
Con Braided cable
The braided cable is stiff and may catch on the mouse pad on a regular basis.
Con Too light
The 3 weights and aluminum frame are just not heavy enough. If they were to add a weighted sled for more weight instead of 3 plugs, they could make it comfortable for a wider range of people. Satisfying both users who like light or heavy mice.
Con Finnish rubs off
The rubberized texture comes off the thumb rest and ring finger side around 2 months in. The slick plastic underneath is not a sure grip when moving around in game. Considering this is a gaming class mouse you would think they would use a textured finished material not a coating.
Con Laser sensor
The included Avago ADNS-9500 laser sensor is going to have trouble with acceleration.
Con Poor middle mouse button fail
Middle mouse button click stopped working reliably after about 2 months of negligible gaming.
