Razer Lachesis Mouse Review



The Razer Lachesis is a high-end gaming grade mouse that was released late last year, catering to the hardcore gamer market. As we all know, having the best gaming hardware on the table does not necessarily translate into frags, so you had best have the skills to justify the use of this mouse. The Lachesis is a 4000 DPI mouse, which is roughly five times as fast and sensitive as today’s average optical mouse (the majority of optical mice feature 800 DPI resolution), and is also ahead of the gaming mice crowd that tend to stop at 3200 DPI. Read on more of the review after the jump.

Opening up the Lachesis box will see a slew of propaganda including a certificate of authenticity (bragging rights more like it), a Razer pamphlet detailing all their products, a CD, manual (who reads this anyway), a warranty statement, and an quick start guide. Oh yeah, you also get a couple of Razer logo stickers for you to proudly attach to a notebook or desktop just in case nobody noticed you splashed out a small fortune on the Lachesis itself. Thankfully, the plastic package that the Razer Lachesis comes in is a snap to open and

One thing that truly stands out about the Lachesis is its design. This ambidextrous mouse features a symmetrical shape and measures roughly five inches long and two-and-a-half inches wide, with a height of approximately an inch-and-a-half. You also get a slew of buttons to go along with your gaming diet – nine programmable ones, to be exact. In addition, there is 32KB of on-board memory for you to store profiles, macro commands as well as on-the-fly DPI switching that comes in handy whenever you feel that the action is too fast/slow for your taste. Sounds perfect for those who want a less speedy response whenever they zoom in to snipe, something that can be done in Quake through key bindings, but now made much more easy.

I like the scroll button that has enough tactile feedback, but it is missing the ultra smooth scroll mode found on Logitech’s G9 Laser Gaming Mouse. That feature comes in handy whenever I want to go through thousands of rows of data in my spreadsheet, but if you’re going to use this primarily for gaming, then there isn’t much to complain about here.

The now famous Razer logo is also there on the mouse, and it can’t be seen when the mouse is not plugged in. Once connected to a USB 2.0 port via its gold-plated connector, both the scroll button and Razer logo will light up and start to glow in a pulse, respectively.

At the bottom are Ultraslick Teflon feet which Razer recommends be used with a Razer mousepad, where you won’t have to replace the feet all too often when used on other surfaces.

With a 7-foot tangle-free cord, you won’t be able to find yourself being slow to respond no matter what the situation is in the game. Note that Razer does not want to take the plunge into the world of wireless gaming mice, since those who are at the top of their game have experienced a slight lag in response time where wireless mice are concerned, so an always-on laser sensor with a corded setup works perfectly for those who live, breathe and eat gaming.

The Razer Lachesis can hold up to five different gaming profiles, allowing multiple users to use the same mouse. I find that a mouse is a very personal item, so chances are I won’t be sharing it with anybody else, hence these profiles stored will be used for different games that I play, including RTS, FPS and RPG genres. Generally, the buttons are highly customizable, and you can also have total control over the scroll speed and sensitivity for different profiles. In addition, different keys will be able to start up differing applications according to the way the profiles have been programmed. For those who are big into macros, the Lachesis might disappoint as it offers only eight key presses and no more, hence making it rather limited in such usage.

What I’m more interested, however, would be the Lachesis’ role when it comes to gaming. I must admit that the claw-like grip took some getting used to, as I have always used my middle finger to control both the right mouse button as well as the scroll wheel, but the Lachesis has forced me to use the ring finger for all of my right click activities while my middle finger remains poised to strike the scroll wheel as and when needed. This learning curve took a while, but it was well worth the effort as it became second nature and felt much easier to control a day after that.

I hardly stick with the 4000 DPI setting though, as that’s way over the top for me, making it extremely easy to miss the target especially during a sneak attack from behind. Those who tend to jerk the mouse around will also appreciate a much lower DPI setting which can conveniently be changed thanks to the on-the-fly DPI switching buttons located right below the scroll wheel. The polling rate that Razer claims stands at 1000Hz which is extremely fast, but for a gaming mouse, half of that quoted figure is already considered to be very good. I like the way the mouse slides across smoothly without once causing the cursor to jump. Whenever I lift the mouse up in an FPS firefight to readjust its position, there is a slight jump occasionally, but that is a small concern since the Lachesis is responsive enough for you to bounce back from minor gripes like that.

The Razer Lachesis is definitely a good purchase option at $79.99 to consider if you’re currently looking for a gaming mouse. With such a high DPI level, it will last you for a fair bit of years to come, and chances are you will still stick with it long after the Ultraslick Teflon feet have worn thin. The right side buttons are rather difficult to click during the times when you need it the most, but chances are you won’t assign any important keystrokes to those two buttons.


  • 4000dpi Razer Precision 3G Laser™ sensor
  • 32KB Razer Synapse™ onboard memory
  • Nine independently programmable Hyperesponse™ buttons
  • 1000Hz Ultrapolling / 1ms response time
  • On-The-Fly Sensitivity™ adjustment
  • Variable true dpi setting adjustments in increments of 125dpi
  • Always-On™ mode
  • Ultra-large non-slip buttons
  • 16-bit ultra-wide data path
  • 60-100 inches per second
  • Ambidextrous design
  • Scroll wheel with 24 individual click positions
  • Zero-acoustic Ultraslick™ Teflon feet
  • Gold-plated USB connector
  • Seven-foot, lightweight, non-tangle cord
  • Approximate size: 129mm (length) x 71mm (width) x 40mm (height)
  • Windows® 2000/XP/X64/MCE 2005/Vista/Vista64
  • Available USB port
  • CD-ROM Drive (for drivers)
  • At least 35MB of hard disk space (for drivers)

3 reviews or comments

KGA Says: February 17, 2009 at 12:44 am

this mouse is great

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