I've been hosting and going to LAN parties off and on for almost 15 years, and I've been building my own PCs for just as long, so you might say I've been at times a "hardcore gamer." I've never been one to think twice about buying a mildly expensive video card, or dropping a couple hundred dollars on a motherboard. So it's surprising to me that I never sprang for an actual gaming mouse. Maybe I'm just stubborn.

Razer was kind enough to send me their elite Razer Lachesis gaming mouse, Razer Moray gaming earbuds and a T-shirt for review. I guess I'll review the earbuds and T-shirt later.

Looks, Buttons, Cable

I've seen pics of just about every Razer mouse from the first Razer Boomslang on forward, and I've even spotted a few at LAN parties here and there. Sure, they've always been pretty and a nice departure from the beige mice that dominate corporate cube farms, but the looks never enticed me to buy one of my own.

At first glance, the Razer Lachesis looks pretty stylized for a mouse. In a good way, of course -- I'll take Razer aesthetics over the standard, boring egg-shaped mice any day. The top half has a matte finish, while the remainder is encased in smooth, shiny polycarbonate plastic.

Each of the 9 buttons on the Lachesis is programmable with Razer's Config app, which we'll cover later. Physically there are no seams for the large left and right mouse buttons, which allow for panicked finger spasms when someone sneaks up on you in Call of Duty 4. The wheel between them has a very mild click that you don't really hear, you just feel it enough to know you scrolled. Just behind the wheel are the final two programmable mouse buttons, which by default increase and decrease the Dots Per Inch (DPI) sensor rate. A higher DPI will allow you to make a 180-degree turn in a three-dimensional environment with less actual mouse movement. It took me a couple days to get used to the new button placement on the Lachesis, but once I did it made my plain-Jane work and home mice feel awkward and bulky.

Lighting is important to gamers; we prefer lights on everything now, including our RAM sticks, inside the case, under the keyboard keys...we'd put them in our heads if we could, just to know they're there and thus our noggins are properly modded. The Razer Lachesis has pleasant blue lighting in the wheel and on the palm rest. The wheel even has a little lighting gradient action, where parts of it almost look like a white lightsaber. The palm rest lighting is the curvy, Razer Snake logo, which fades in and out about every 8 seconds. If you prefer, you can turn the light effects for one or both off, for maximum incognito gaming.

The cable for the Lachesis is an enviable seven feet long, so if you have your gaming computer five feet away in a block of solid hydrogen, you can game away without feeling it pull on the mouse. In fact, it's such a lightweight and flexible cable, I barely noticed it was there.

Software, Configuration

The Lachesis Config app is simple and straightforward. You have a picture of the mouse in the middle, with the button mappings noted and surrounding it. Changing the button mapping is easy: just click the box and choose from eleven preset button assignments in the drop down list.

The button presets are below:

  1. Click - your standard left-click, if you're right-handed. The Razer Lachesis is ambidextrous, so lefties can easily swap mouse button assignments.
  2. Menu - right-click. See above for lefties.
  3. Universal Scrolling - Scroll up, down, and sideways by moving the mouse.
  4. Double-Click
  5. Advanced Functions - map the button to a single keyboard key, a macro combination, and more commands and functions like copy, paste, close window, lock computer, play, stop, etc.
  6. DPI Settings - switch to a higher DPI setting for increased sensitivity, lower for less.
  7. Profile Settings - Assign the button to one of 5 profiles that the Lachesis stores in its 32 KB of onboard memory. Create game profiles, Word/Excel/Office profiles, Photoshop profiles   whatever you want!
  8. Windows Button 4 - Often forward or back in your browser.
  9. Windows Button 5 - Often forward or back in your browser.
  10. On-the-fly Sensitivity - Adjusts pointer sensitivity.
  11. Button Off.


I've played Crysis, Half Life 2, Team Fortress 2, Age of Empires III, Call of Duty 4, Age of Mythology, and Republic Commando with the Razer Lachesis mouse and an Alienware M17 laptop, and I'll never go back to traditional mice again. I can play anywhere, regardless of surface area. The M17 laptop has a 4 x 6-inch area right next to the touch pad, and I've used the Lachesis on that tiny area while surfing, gaming, and working. With up to 4000 DPI, it's almost like I just think about moving, and it's so.

The matte surface doesn't let your hand or fingers slip, no matter how long I've been fending off enemies while awaiting reinforcements. The bottom of the Lachesis sports Zero-acoustic Ultraslick Teflon feet, which produce very little noise, even if you're gaming on a desk littered with cookie crumbs.


I would recommend the Razer Lachesis to anybody, gamer or not. All this video game talk is making my trigger finger itch, and if you've been similarly affected, why not play on a decent gaming PC? Check out our reviews of Gaming Desktops and Gaming Laptops!

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