Equipped with the revolutionary 4000dpi Razer Precision 3G Laser™ sensor, the Razer Lachesis™ gaming mouse takes on the same lethal traits as its namesake that will send shivers down your enemies’ spines. Add 32KB of onboard memory, nine programmable Hyperesponse™ buttons, as well as an impressive 1000Hz Ultrapolling™ with 1ms response time, and you’ve got a formidable weapon in your arsenal of destruction. Victory beckons – move in for the kill.

4000dpi Razer Precision 3G Laser™ sensor
The Razer Lachesis ™ reigns supreme with a true 4000dpi 3G Laser™ sensor, which enables movement speeds of 5 times that of a standard 800dpi optical sensor.
 
32KB Razer Synapse™ onboard memory
With a 32KB onboard memory, you can store up to five unique gaming profiles. 

Nine independently programmable Hyperesponse™ buttons
The Razer Lachesis™ allows programming of button functions while Razer’s Hyperesponse™ technology reduces latency for optimum gameplay.

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)