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"ryan, i guess i can answer the 1st rating a little different when i actually know......the last 2 years ive ..."
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Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting

Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting - 1
Actual product may not be exactly as shown.
Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting - 54999_l.jpg Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting - 54999_1.jpg Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting - 54999_2.jpg Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting - 54999_3.jpg Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting - 54999_4.jpg Customer Photos (0)
Reg. Price: $79.99  CAD
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Part #: RZ01-00170500-R3U1

SKU: 54999
Shipping Weight: 1 lbs
Shipping estimated: $5.99 *
*Via ncix selected courier.

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Customer Reviews of Razer RZ01-00170500-R3U1

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Razer RZ01-00170500-R3U1 reviews.
Experience: 2 Years

Comfortable gaming mouse


- Pretty good ergos
- LEDs
- Looks nice
- Not the most comfortable (least not as much as the Mamba)
This was a precursor of the Razer Mamba. I used this for gaming and extended use it was pretty ergonomically friend. The Mamba is a better version of this in my opinion.

Experience: 4 Years


one of the best mouse i used
should come up with a pro-kit or w/e they call it like back in the diamond back days.
this mouse could be the swan song for razer since the diamond back. however it is not design to take any weight inside the mouse like diamond back.
but all around, best mouse i've used

Experience: 34 Days


Great build, Very responsive, Customizable LED colour, Ambidextrous
I had issues with rapid polling rate (1000hz)
I went for this wired mouse from a wireless microsoft mouse after building a new rig. I initially had feared my cat would bite the wire as he did for various other PC components before but so far, I have not seen any signs of this. The wire is meshed and seems rather solid.

I've had issues while gaming at 1000hz polling. The mouse simply stops responding. I'm unsure if this has been observed by other people or just me but I do not have the same issue with the 500hz polling (which is default).

I usually roll at around 1800dpi also as I find that anything above 2000dpi is too fast for me.

I love this mouse and would recommend it to any gamer not looking to have a mouse with a bunch of buttons. This one keeps things simple with back and forward on each side.

Experience: 6 Months


Great for Claw Grip
Nice amount of programmable buttons
Braided cord
The button placements could be better
Great mouse. I had a problem in the beginning with it where It would disconnect. This was fixed by rolling back the drivers. I am very impressed with the quality of the mouse. I will probably buy another when this one dies.

Experience: 2 Months


nice looking mouse with on and off flashing logo, fits nicely in my small hand, 7 very useable buttons, programmable buttons, nice packaging for the mouse, Razer included a free case sticker
2 buttons useless to me as they are too hard to click with pinky finger, wired, price (unless you got it on sale elsewhere like I did this is pretty pricey for a mouse especially if you really don't need the extra buttons lol)
9 + button mice still have a long way to go before they can be said to be made perfect and simple to use. Whether it be the Naga or this mouse or other mice made by other companies button placement could be better. Whether you are right or left handed with this mouse you end up with 2 hard to reach buttons. Why Razer could not have located more to the top of the mouse like the g300 is beyond me. In fact alot more mice makers should do that. It is a heck of alot easier to hit top buttons than poorly sized and placed side buttons especially when you are using your pinky to hit them. On the Lachesis the 2 right side buttons for me are useless because of the location and the thickness/shape of them. If they extended out more and were located higher they would be better.

I also have to say that I would prefer that this mouse was wireless but for the most part with lots of devices wired is still the way to go. I will continue to use wired until wireless is on equal ground with wired .... which may be never.

The good news about this mouse is all the buttons you have to use (despite 2 being hard to use). 7 of the buttons are definitely possible for gaming and you can program some of them too.

In terms of size his mouse is definitely for people with small hands in terms of gripping it and holding it.

As for packaging and extras I give Razer a 10/10 for that. A nice case sticker is included.

In regards to how this mouse looks well it looks awesome. The flashing logo is a nice touch and the mouse has a sleek, snake like look to it.

This mouse is also for lefties and righties so if you are in a household with lefties and righties and share mice this will definitely be a good purchase.

If a person with small hands is looking for a 7 button mouse that looks nice I recommend this. If you are looking for a 9 button mouse or more look elsewhere and I believe that the G300 is the best mouse out there because of better overall button placement compared to other mice but hey it isn't perfect either but it is the best of the imperfect.

In terms of my rating I said satisfactory because it is a mouse that is very useable but again not perfect. As for paying $80 for it well I don't know about that as I got this for under $40 at a big box store. In order for me to purchase it again it would have to be at a similar price.

For all the mice manufacturers out there they need to stop making one good feature on a mouse and then take it away with a future model. I really feel more top buttons should be a feature of every mouse as it is more normal for people to tap down on a button than use a pinky to do anything .... especially reaching side buttons. Heck what is up with the Naga ? The last 3 buttons could have been removed and they could have placed 2 more on the top and one on the right side of the mouse. That makes way more sense. Heck just 2 more up top makes more sense.

The quest for a perfect mouse still goes on ......

Experience: 3 Months


custom colors
buttons are easy to get to and click
very sensitive.
able to set a key macro
when i first got the mouse for the first week i had to reconnect it about 3 times a day.. it would just stop working so i thought it was driver related..but after a while it just stopped doing that. Tho it does come back from time to time.. id say maybe 2 or 3 times a week.
It is a awesome mouse and is very sensitive, i only keep it around 2000dpi setting and it works awesome. Only true downside tho is that bug that disconnects the mouse making you lose mouse function in the middle of a computer game and then having to scramble to the back of the comp to unplug/plug that cord back in.

Other then that tho i would buy it again and recommend it

Experience: 7 Days


-Great grip and feel for people with long hands or fingers
-Customizable lighting, DPI, Polling, etc.
-High quality DPI sensor
-Braided cable, nice big gliding pads on bottom
-Nice matte grippy finish on mouse
-Sensor doesn't track well when mouse is lifted off the surface
-Forward/Back buttons a little too hard to press for my preference
-DPI buttons a little hard to press in a heat of the moment situation
-scroll button has no horizontal scroll
-Is lighter than I am used to, a lightweight mouse in general and there is no way to adjust the weight.
Overall this is winner because of the great ergonomics (imo) aswell as good tracking. Very nice looking as well.

Experience: 2 Years


-In my hoest opinion, the best looking mouse around
-The shape being ergonomic makes it a perfect gaming device for those long grinds.
The thing is cheap. Ive had a couple of them and the same issue evry time. The lazer just stops working. No registered movement on a pc or anything. Totally dead within a year.
Dont buy. Get something else. Even though there's a MIR for however long, it would cost you more time and money than I would have payed for the device,

Experience: 2 Months


- Colourful
- Very responsive
- Easy to use software
- Rugged usb cable
- Awkward hold
I got this mouse without trying it in stores. The mouse takes a bit to get used to since it's a tad bizarre. It's now a bit more comfortable but the two buttons on the right side are usually out of reach.

The software for the mouse for editing buttons and colours works very well and is pretty user friendly.

My mouse has been defective since a month and keeps disconnecting within an hour. I have to disconnect and re-connect it. I tried a software reset and it is still re-occuring. My next step will be to contact the company. Other than this defect, I am content.

Experience: 6 Months


Easy to use Application To Customize the key
nothing so far
great durable mouse bought 3 of them from razerstore and ncix the application that came with the mouse is easy to use and no bug so far. good for gaming has been using it for around 5-6 month.

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Messages about Razer Lachesis Gaming Mouse 3.5G Laser Sensor 5600DPI 9 Button Optical USB Multicolor Lighting

I think this mouse is obsolete? (prairiemystic- Jul 13, 15, 4 Replies)
Dieing a slow death (Sean_D- Oct 17, 12, 4 Replies)

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