Let’s dig it in!

Package Appearance
The outside packaging

The player on the package is Taco from the Counter-Strike e-sports team MIBR

This HyperSpeed wireless technology according to Razer could effectively reduce latency by 25%

The inside packaging — The mouse, charging stand and accessories

Charging cable, Razer still uses a micro USB interface with a special shaped connector in 2020 but not a type-c

Everything inside the box

Product Analysis

The size of the Razer Viper Ultimate has the same dimension compared with the normal version. It’s 127mm long, 66mm wide, and 38mm high. It’s also a small/medium-sized, fully symmetrical designed mouse

There are some small changes in appearance details. The design of the bottom part under the main button cover has been reversed. This is an attempt to make the mouse dustproof

The mouse 4-sides looking
The side panel follows the dot-matrix design. It will not stick to your hands and also keep certain friction to avoid slips while playing
The surface of the roller is still treated with a non-slipped dot matrix design and slightly larger damping

The bottom footpad has been changed from a large-sized sticker to four small stickers, and a dustproof footpad has been worn around the sensor. All footpads have been upgraded to a relatively rare “PTFE” Teflon material.
The default CPI switch button of this mouse is at the bottom. A total of 5 profiles can be set with default values being 400, 800, 1600, 2400 and 3200

The weight of the mouse is only 74g with the built-in battery, it’s slightly heavier than the wired version

The wireless receiver is stored in the bottom of the mouse with a transparent cover

The charging base has a beveled design, it’s similar to the previous flagship Razer Ouroboros

There is an RGB lightbar under the charging base with a rated voltage of 5V，500mA

The USB port on the base can be connected to a wireless receiver

The height after inserting the wireless receiver does not affect the charging of the mouse

Software Analysis
New Razer products are now managed by Razer Synapse 3
Razer Synapse 3 Dashboard

Razer Viper Ultimate buttons customise panel
Because the mouse has an asymmetrical design, it is easily mapped and fully customisable, the ‘Hypershift’ function also enables the ‘Shift’ function on the mouse

Razer Viper Ultimate Performance control panel
The CPI of this mouse can be asynchronously customised for XY axes, up to 20000 cpi and Polling Rate up to 1000 Hz, CPI can be customised for 5 files with different triangle colour LED indicators

Razer Viper Ultimate Chroma settings

Razer Viper Ultimate Mouse mat surface calibration
Introducing the Razer Asymmetric Cut-off technology, this function allows users to set up different Lift-off distance separately, to avoid the mouse cursor suddenly stopping when users lift their mouse frequently

Power settings
This function allows users to check the battery level and change the battery-saver settings

Macro setting

Profile binding with games

Charging Base settings
This setting allows users to enable the battery level binding with RGB lightbar

Performance Test
The redesigned Teflon footpad provides an ultra-smooth feeling. The 74g light-weighted design and the Razer Hyperspeed wireless technology also help players to achieve a superfast response and extremely low latency.

We have tested the mouse on the most popular mouse pads: Fine coated pad, aluminum, soft silicone pad, fine fabric cloths thin/thick pad and coarse fabric cloths thin pad.

The tests are based on the mouse’s start, Smoothness, Brake, and Transparency.

Fine coated pad
Start: Medium feeling on both Static friction and dynamic friction
Smoothness: Extremely smooth
Brake: Easy to brake and good positioning accuracy
Transparency: Very good contact, no heightened sense of passage that results in misalignment on the Z-axis

Aluminum pad
Start: Very low felling on both Static friction and dynamic friction
Smoothness: Extremely smooth, but the maintenance is relatively difficult. The Teflon feet skates will be frayed quickly by the aluminum surface
Brake: Easy to brake and good positioning accuracy
Transparency: Very good contact, no heightened sense of passage that results in misalignment on the Z-axis

Soft silicone pad
Start: This textured pad makes the higher static and dynamic friction feeling
Smoothness: Very smooth
Brake: Easy to brake and relatively accurate positioning
Transparency: a relatively thin thickness of the cushion, the material is quite solid and the permeability is good

Fine fabric cloths thin pad
Start: Low static friction and very high dynamic friction
Smoothness: Extremely smooth
Brake: Easy to brake, positioning is accurate, the resistance is light. Muscle memory is easier to form and more friendly for novices
Transparency: A thin pad with soft material and good permeability

Fine fabric cloths thick pad
Start: Low static friction and very high dynamic friction
Smoothness: Extremely smooth
Brake: Easy to brake, positioning is accurate, the resistance is light. Muscle memory is easier to form and more friendly for novices
Transparency: A thick pad with soft material and good permeability

Coarse fabric cloths thin pad
Start: Medium static friction, low dynamic friction
Smoothness: Extremely smooth
Brake: Easy to brake and relatively accurate positioning
Transparency: A thin pad with soft material and good permeability

In general, this mouse has a very adaptable feeling that directly relates to its light-weighted design. Plus, we tested this mouse on a 5mm thick cloths pad and enabled the Asymmetric cut-off setting at TD:2 LD:1mm/LOD:3mm, the result is very outstanding.

The main button is still using Razer’s custom-made purple dot 70M optical microswitch. The wireless version of the button sounds dull for some reason, but it feels soft.

The optical engine, we have to talk about the PAW3399 used by Razer this time. This flagship engine is to compete with Logitech’s Hero 16K (the representative product is G-pro Wireless). Both have beast performance and Ultra-low power consumption. PAW3399 improves the highest CPI on the basis of the old PMW3389. Now the highest CPI can reach 20,000, even this number is not suitable for all users, it is indeed a symbol of the sensor’s hard power because it means higher tracking accuracy. Another hard parameter is that the maximum movement speed of the sensor can reach to 650IPS, and on PAW3389, this number is only 450IPS. Higher maximum movement speed can provide a better tracking experience in games that require rapid mouse movements.

The HyperSpeed technology, which has better latency and stability than Bluetooth. There has been no unstable signal interference in nearly a month of our user experience. At the response rate of 1000Hz (1ms), the Razer viper ultimate has a battery life of close to 70 hours without RGB lighting. If you play high-intensity games for 7 hours a day, it can last for at least 10 days. And with RGB lighting turned on, it can operate for nearly 50 hours. 450mAh battery combined with Razer’s power-saving settings greatly increases user experience.

Disassembling Analysis
The Backplate has 4 screws that are hidden under the mouse feet’s

The Top case

The Top case inside

The mouse bottom case – the Razer Viper Ultimate is the ‘Project AVA T1

Microswitch
The two main buttons use the Razer Optical Mouse Switch which has a superfast 0.2 milliseconds response. Since the electrical signal can be transmitted without mechanical contact, the Razer optical mouse micro switch is difficult to wear under heavy usage. As a result, this microswitch has a durability of up to 70 million clicks, which is 40% better than the most durable microswitches on the market.

The side button board
The four black-dots microswitches used by the side buttons are from Changfeng, the model is ‘MS11.257B.P5B60A’, 5 million button life and 60 ± 15 gf.cm

The roller encoder comes from Kailh’s EN97 series (CEN979012R31), 30 ± 10 gf.cm, 300,000 lifespan

The mainboard for this mouse

The roller

The sensor is PAW3399 from PixArt, which has 20000 cpi, 650 IPS and 50 G acceleration speed

The controller chip is nRF52840 from Nordic

The RGB LED chip

The 450mAh Li-ion battery manufactured by ChangHong

The charging port board

Usability Analysis
To test the line correction, frame loss, and the smoothness, we are using the mousetest from Areson

This mouse doesn’t have the line correction function

The Frame loss control and the smoothness control are also quite good

We also tested this mouse by using Enotus Mouse Test

Finally, we are using the powerful MouseTester v1.5
By using its powerful plot function, we are tested several mouse performances

xCounts vs Time
While the average line is smoother, which means it’s more liner on the mouse track movement; while the points of the counts are much closer to the line, which means the jitter of the engine is lower. As the graph shows, the result of this performance is quite good in different CPIs

1800 cpi is under a normal use level, jitter is not large and relatively stable

800 cpi, jitter is a bit low

1600 cpi, jitter still low

2400 cpi, jitter still low

3200 cpi, jitter still low

6400 cpi, jitter still low

12800 cpi, jitter still low

16000 cpi, jitter is surprisingly under control

20000 cpi, jitter is surprisingly under control

X vs Y
This function is to detect mouse frame loss, As the graph shows, the result of this performance is quite good

xyVelocity vs Time
The unit of velocity is m/s. This test is mainly to look at the acceleration of the mouse. As the graph shows, the point of Razer Viper is better for curve fitting, that means the jumped-like rapid acceleration rarely appears, The line of fit is coherent and also has a dense distribution

If there is a good device that allows the mouse to move at a constant speed, in this case, the speed line is a straight line, if the engine has acceleration, it will fluctuate, so this is the most ideal test method. The result of this performance is great

Summary
The Razer Viper Ultimate, as a wireless gaming mouse that focusing on e-sports, has achieved wireless control close to a wired mouse, which is a great achievement. At the same time, this mouse has 8 programmable high-speed response buttons and 5 groups of on-board memory profiles, allowing users to quickly adjust mouse parameters. Plus, this mouse supports Razer Synapse 3, which will enable more useful operations such as synchronisation of lighting effects, mouse macros, custom key bindings, and game optimisation.

The Lightweight design, integrated both wireless and wired function, ultra-low latency of the connection, the classic designed RGB charging dock, the PAW3399 flagship sensor, on-board memory design and 70 hours of long battery life. These top-level designs have merged together to become the Razer Viper Ultimate, which simultaneously meets a variety of different gaming needs, whether it is casual or e-sports.

In terms of price, it’s AU$219 and a little bit expensive, but still affordable.

EPIC PC RATE SCORE: 95/100

EPIC REWARD: EPIC RECOMMENDED，EDITOR’S CHOICE & DESIGN AWARD

RAZER VIPER ULTIMATE GAMING MOUSE OFFICIAL WEBSITE:

https://www2.razer.com/au-en/gaming-mice/razer-viper-ultimate