ASUS X99-E WS/USB 3.1 Motherboard

ASUS X99-E WS/USB 3.1 Motherboard

ASUS X99-E WS/USB 3.1 Motherboard

B&H # ASX99E31WSMB MFR # X99-E WS/USB 3.1
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Product Highlights

  • CEB Form Factor
  • Intel LGA 2011-v3 Socket
  • Intel X99 Chipset
  • Supports Intel Core i7 & Xeon Processors
  • Supports SATA III, SATA Express, M.2
  • Supports 128GB DDR4-3200 (OC) Memory
  • 7 x PCIe 3.0/2.0 x16 PCIe Slots
  • Dual Gigabit Ethernet Controllers
  • USB 3.1 / USB 3.0 / USB 2.0
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ASUS X99-E WS overview

  • 1Description

The X99-E WS/USB 3.1 Motherboard from ASUS is designed to fit in cases with a CEB form factor. The 12 x 10.5" X99-E WS supports Intel Core i7, Xeon E5-1600 v3, and Xeon E5 2600 v3 processors with a LGA 2011-v3 socket, as well as the Intel X99 chipset. This motherboard is compatible with Windows 8.1, 8, and 7 operating systems. It also supports USB 3.1, which can achieve data transfer rates of up to 10 Gb/s.

The CEB form factor of the X99-E WS has 8 x DIMM slots and can support up to 128GB of non-ECC, unbuffered DDR4 RAM at the following speeds - 3200(O.C.), 3000(O.C.), 2800(O.C.), 2666(O.C.), 2400(O.C.), and 2133 MHz. However, please be aware that the maximum base memory speed is 2133 MHz and anything higher is achieved through memory overclocking (O.C.). Also, please bear in mind that when installing a Xeon E5 1600 v3 or 2600 v3 processor, the system is able to support 128GB of unbuffered ECC DDR4 RAM at 2133 or 1866 MHz, as well as 128GB of registered ECC RAM at 2133 and 1866 MHz.

The X99-E WS has a total of 8 x SATA III 6 Gb/s ports, 2 x SATA Express ports (each of which is compatible with 2 x SATA III 6 Gb/s ports), 2 x eSATA 6 Gb/s ports (compatible with 2 x SATA III 6 Gb/s ports), and 1 x M.2 x4 Socket 3 port with M Key that supports PCIe storage devices type 2260 and 2280. It also has 2 x USB 3.1 ports, 10 x USB 3.0 ports, and 2 x USB 2.0 ports. To provide increased speed and/or data redundancy, RAID 0, 1, 5, and 10 modes are supported. For PCIe expansion, there are 7 x PCIe 3.0/2.0 x16 slots. While the X99-E WS does lack an integrated GPU, it has been optimized for multiple graphics cards and has multi-GPU support for NVIDIA 4-Way SLI and AMD 4-Way CrossFireX technology.

The X99-E WS is built for endurance. To this end, it is equipped with 12K solid capacitors, making it able to endure over 12,000 hours at 221°F / 105°C and 1.2 million hours at 149°F / 65°C. The X99-E WS also features lowered equivalent series resistance (ESR) for increased efficiency and minimized heat generation.

The X99-E WS/USB 3.1 Motherboard is also equipped with the Realtek ALC1150 8-Channel High Definition Audio Codec featuring Crystal Sound 2 that includes 8 x audio jacks and 1 x Optical S/PDIF out. Wired network connectivity is achieved through dual Gigabit Ethernet controllers - 1 x Intel I210-AT controller and 1 x Intel I218LM controller. Included with this motherboard is 1 x ASUS Q-Shield, 1 x COM port cable, 12 x SATA III 6 Gb/s cables, 1 x 3-Way SLI bridge, 1 x 4-Way SLI bridge, 1 x Q-connector (2-in-1), and 1 x 2-port USB 2.0 module.

Quad Strength Graphics Power

Four PCI Express 3.0 x16 slots
The X99-E WS/USB 3.1 can carry up to four dual-slot graphics. It supports 4-Way NVIDIA Geforce SLI and AMD CrossFireX x 16 Link, making it a well-suited choice for graphics professionals who depend on powerful graphics in areas such as design and modeling, medical research, plus processing-intensive simulation and rendering applications. In addition to graphics cards, extensive X99-E WS/USB 3.1 expandability offers ample room for RAID cards, PCI Express-based solid state storage drives, video capture cards, and other components

Power Solutions

12K Capacitors
ASUS has equipped the X99-E WS/USB 3.1 with 12K solid capacitors. These Japanese-made capacitors are very durable, able to endure up to 12K hours at 221°F / 105°C and 1.2 million hours at 149°F / 65°C. These temperatures are far higher than those generated by everyday computing, making X99-E WS/USB 3.1 built for endurance. 12K capacitors also boast lowered equivalent series resistance (ESR) for increased efficiency and minimized heat generation
ProCool Power Connectors
Compared with traditional power connectors, ProCool connectors ensure a close and secure connection with the X99-E WS/USB 3.1 motherboard. The flush connection enables lower impedance and better heat dissipation, allowing a cooler operating temperature
Beat Thermal Choke
ASUS Beat Thermal Chokes deliver durability and up to 93% power efficiency under normal operating conditions. A special fin design results in 5.4 to 9°F / 3 to 5°C lower choke temps for added stability, which is increased exponentially by the use of highly conductive and efficient gold-treated coating. This translates into minimal-loss power delivery
The X99-E WS/USB 3.1 benefits from an integrated Driver-MOSFET (Dr. MOS) that both saves space and reduces operating temperatures. Compared with traditional MOSFET designs, the Dr. MOS high-side and low-side MOSFETs and built-in driver extend component lifespan and enhance power efficiency


Q-Code Logger
Q-code logger is your one-touch status checker that lets youeasily check the system's status at any time. Plug a flash drive into an adjacent USB port, press the motherboard's dedicated Q-Code logger button, and all ASUS Q-Code event logs for the current live session will be copied to the drive, even with the system off
ASUS Dr. Power
As the X99-E WS/USB 3.1 is meant for professional users who rely on non-stop operation, stable power delivery is critical. Real time power supply health detection helps prevent sudden system shutdown and provides hassle-free notifications should power delivery be insufficient. Additionally, LED messages on the board clearly indicate any relevant power issues in the event your system fails to boot


ASUS OC Socket
The X99-E WS/USB 3.1's CPU socket includes extra pins that connect proprietary circuitry to extra contacts found on Haswell-E's land grid array (LGA). When combined with ASUS' customized UEFI, this feature offers improved overclocking margins, especially under extreme liquid-nitrogen (LN&sub2;) overclocking. You'll enjoy better margins for memory overclocking, better comparative memory performance under the same frequencies, and better margins for CPU overclocking with minimal voltage drop - so you're able to push processors and DDR4 memory beyond their limits. OC Socket is 100% compatible with Haswell-E LGA 2011-3 processors
Make Your Memory Go Faster
This platform supports DDR4 memory and is capable of overclocking memory up to DDR4 3200+ MHz with all eight DIMMs fully loaded. ASUS T-Topology circuit design plus a patent-pending OC Socket unleashes the full potential of DDR4 by minimizing crosstalk and signal reflections. Signal timing issues are also greatly reduced, resulting in improved stability and overall performance. ASUS also works with almost every DDR4 memory vendor to help ensure compatibility

5-Way Optimization

CPU Performance boost
Unleash your PC's full performance with a simple two-phase onboard switch or the ASUS AI Suite 3 utility The Turbo Processor Unit (TPU) offers precise voltage control and advanced monitoring for the CPU and the graphics card, enabling great freedom to adjust CPU frequencies and ratios for optimized performance and to exploit the potential out of your graphics card
Energy Efficiency
With the Energy Processing Unit (EPU), you will enjoy from system-wide real-time power savings, controlled via a simple onboard switch or the AI Suite 3 utility. EPU detects and adjusts power consumption according to the PC's needs - automatically. It can also reduce CPU wattage to an indicated level or enjoy even more savings with Away Mode, which creates an extreme energy-saving scenario by shutting down unused extra I/O controllers and reduces the graphics cards' power level while you're away, so the PC consumes only the energy it needs
Fan Xpert 3
Fan Xpert 3 puts 4-pin/3-pin CPU and case fan controls in one place. It scans each fan's characteristics and delivers custom settings for each fan based on the dedicated area temperatures detected by hardware thermal sensors. It can also reduce the CPU fan speed to below the default minimum, for extra-quiet and power saving operation during light loads.
DIGI+ Power Control
Intelligent CPU power draw detection with ASUS DIGI+ Power Control is a technology that fully complies with Intel VRD12.5 specifications, increasing overclocking potential, enhancing system stability, and improving power efficiency with flexibility and accurate control
Turbo App
Gamers and professionals can benefit from app specific optimizations through the ASUS Turbo App. Its tuning panel boosts a range of hardware controls: overclock your CPU, tune your fans, prioritize network data, and optimize audio settings automatically


UEFI BIOS is a mouse-controlled graphical BIOS that has been improved to increase its appeal. Whether you're a PC novice or a seasoned overclocker, the EZ and Advanced Modes help you find your way, quickly and easily
EZ Mode
Fan Profile: Detailed CPU and case fan information for instant cooling
SATA Information: Displays SATA port details for you to easily recognize devices
Clock Adjustment: Use mouse controls to change the time and date
EZ XMP: Improve DRAM performance with a click
Advanced Mode
GPU POST: Find more info about your graphics cards and slot bandwidth allocation. Works well for 2 or 3-way SLI or CrossFireX
Shortcut: Press Enter to create shortcuts to favorite settings, or select an existing shortcut and press F4 to go straight there
Quick Notes: Make notes and capture BIOS-related ideas, quickly and conveniently
Last Modified Log: Track last change and save preferred profiles onto a USB drive
SATA Port Renaming: Rename SATA ports for easy identification
Map to MyFavorite
Quickly find tuning options and add preferred tools to the MyFavorites list
EZ Tuning Wizard - OC and RAID
Select your hardware and use scenarios to tune system performance or streamline your RAID configuration for faster data retrieval and backups
Graphical Fan Control
Fine-tune individual fans simply by dragging a curve with the mouse
Real-time Hardware Monitor
Benefit from instant information from the critical parts of your system

Fast Transfer Speed

SATA Express
SATA Express provides up to 10 Gb/s data-transfer speeds from two PCIe 2.0 lanes, resolving the higher bandwidth request in the near future. Modern SSDs consume up to 550MB/s, which is close to saturation point for SATA III 6 Gb/s connections. SATA Express is also backwards compatible with up to two SATA drives
M.2 up to 32 Gb/s
With four times the bandwidth of PCI Express 3.0/2.0, M.2 supports up to 32 Gb/s data-transfer speeds. It's a well-suited choice for an operating system or application drive, making your system and its professional apps work more efficiently with faster operational speeds
10 Gb/s USB 3.1
With USB 3.1 connectivity built in and dual Type-A ports for fast USB data transfers, you'll experience data-transfer speeds of up to 10 Gb/s, or twice as fast USB 3.0. This standard is backwards compatible with your existing USB devices and you'll be all set for USB 3.1's speeds. Also, ASUS-exclusive USB 3.1 Boost technology helps to automatically accelerates USB 3.1 performance even further

For Gamers and Professionals

Crystal Sound 2
Crystal Sound 2 makes short work of optimizing audio settings for the way you want to listen, be it gaming, chatting, watching movies, or relaxing to your favorite music. Audio Shielding - Helps ensure precision analog/digital separation and reduced multi-lateral interference

EMI Protection - Helps prevent electrical noise that affects audio quality

Audio Amplifier - Helps enhance sounds for high quality playback over headphones and speakers

De-Pop Circuit - Helps reduce start-up popping noises to the audio outputs

Japanese-made 12K Hours Capacitors - Provides a more durable and reliable lifespan

Dedicated Audio PCB Layers - Separate layers for left and right channels to guard the quality of sensitive audio signals
Turbo LAN
Turbo LAN with cFosSpeed traffic-shaping technology adds lag-reducing support and an intuitive user interface. It allows you to lower lag with no expert knowledge by up to 1.45x. If you're a tweaker, use Advanced Mode for hardcore controls
Intel Gigabit Ethernet
Faster, smoother gaming - always. Intel Gigabit Ethernet has the double advantage of communicating directly with CPUs and offering high TCP and UDP throughput. This helps to significantly reduce the processor's workload, so there's more power for your game and your gameplay

Home Server

ASUS HomeCloud
ASUS HomeCloud lets you access your PC remotely, stream multimedia content to virtually wherever you want, and manage all your stuff from virtually anywhere - no matter where it's stored. It even turns your hard drive into private cloud storage, removing worries about storage limits.
Digital PC Hub
Enjoy your PC's multimedia content virtually anywhere. Pipe music from your PC while sipping coffee in a cafe or sit back with friends and stream a favorite movie to a smart TV. With ASUS Media Streamer, your entertainment goes wherever you go

Intel CPU and Chipset Features

Intel Core i7 Processor LGA2011-v3 Ready
This motherboard supports Intel Core i7 processors in the LGA2011-v3 package, with memory and PCI Express controllers integrated to support 4-channel (8 DIMM) DDR4 memory and 40/28 PCI Express 3.0/2.0 lanes
Intel X99 Express Chipset
The Intel X99 Express Chipset is a single-chipset design that supports socket LGA2011-v3 Intel Core i7 processors. It provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability. Additionally, X99 provides a maximum 6 x USB 3.0 ports and 10 x SATA III 6 Gb/s ports for faster data retrieval
UPC: 889349074534
In the Box
ASUS X99-E WS/USB 3.1 Motherboard
  • ASUS Q-Shield
  • COM Port Cable
  • 12 x SATA III 6 Gb/s cables
  • 3-Way SLI Bridge
  • 4-Way SLI Bridge
  • Q-connector (2-in-1)
  • 2-Port USB 2.0 Module
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    ASUS X99-E WS specs

    CPU Intel Socket 2011-v3 Core i7 Processors
    Intel Socket 2011-v3 for the Intel Xeon processor E5-1600 v3 product family
    Intel Socket 2011-v3 for the Intel Xeon processor E5-2600 v3 product family
    Supports Intel 22 nm CPU
    Supports Intel Turbo Boost Technology 2.0

    Intel Turbo Boost Technology 2.0 support depends on the CPU type

    Chipset Intel X99
    Memory 8 x DIMM, Max. 128 GB, DDR4 3200(O.C.) / 3000(O.C.) / 2800(O.C.) / 2666(O.C.) / 2400(O.C.) / 2133 MHz Non-ECC, Un-buffered Memory (when installing Intel Socket 2011-v3 Core i7 processors)
    8 x DIMM, Max. 128 GB, DDR4 2133/1866 MHz ECC, Un-buffered Memory (when installing Intel Xeon E5-1600 v3/2600 v3 processors)
    8 x DIMM, Max. 128 GB, DDR4 2133/1866 MHz ECC, Registered Memory (when installing Intel Xeon E5-1600 v3/2600 v3 processors)
    Quad Channel Memory Architecture
    Supports Intel Extreme Memory Profile (XMP)
    Hyper DIMM support is subject to the physical characteristics of individual CPUs
    Multi-GPU Support Supports NVIDIA 4-Way SLI Technology
    Supports AMD 4-Way CrossFireX Technology
    Expansion Slots 7 x PCIe 3.0/2.0 x16 (single x16, dual x16/x16, triple x16/x16/x16, quad x16/x16/x16/x16, or seven x16/x8/x8/x8/x8/x8/x8)
    Storage Intel X99 chipset:
    1 x SATA Express port, gray, compatible with 2 x SATA 6.0 Gb/s ports
    1 x M.2 x4 Socket 3, gray, with M Key, type 2260/2280 storage devices support (PCIe mode)
    RAID 0, 1, 5, 10 and Intel Rapid Storage Technology 13 support
    8 x SATA 6Gb/s ports (4 x gray from controller 1, 4 x black from controller 2)
    Intel Rapid Storage Technology supports (functions will work depending on the CPU installed)
    ASMedia SATA Express controller:
    1 x SATA Express port, gray, compatible with 2 x SATA III 6.0 Gb/s ports (these SATA ports are for data hard drivers only. ATAPI devices are not supported
    ASMedia SATA 6Gb/s controller:
    2 x eSATA 6 Gb/s ports, compatible with 2 x SATA III 6.0 Gb/s ports
    LAN 1 x Intel I210-AT Gigabit LAN controller
    1 x Intel I218LM Gigabit LAN, Dual interconnect between the Integrated Media Access Controller (MAC) and Physical Layer (PHY)
    Audio Realtek ALC1150 8-Channel High Definition Audio Codec featuring Crystal Sound 2
    - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, Front Panel Mic Jack-retasking
    - High quality 109 dB SNR stereo playback output (Line-out at rear) and 104 dB SNR stereo playback input (Line-in)
    - High-fidelity audio OP Amp
    Audio Features:
    - DTS Ultra PC II
    - DTS Connect
    - Optical S/PDIF out port(s) at back panel
    - BD Audio Layer Content Protection
    - Audio Shielding: Helps ensures precision analog/digital separation and reduced multi-lateral interference
    - Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals
    - Audio amplifier: Provides the high-quality sound for headphone and speakers
    Japanese-made 12K hours capacitors
    - Absolute Pitch 192 kHz/24-bit true BD lossless sound
    Separate layer for left and right track, ensuring both sound deliver equal quality
    USB Ports Intel X99 Chipset:
    4 x USB 3.0/2.0 ports (4 at the back panel, +blue)
    4 x USB 2.0/1.1 ports (4 mid-board)
    ASMedia USB 3.1 Controller:
    2 x USB 3.0/2.0 ports (2 at the back panel, teal blue)
    ASMedia USB 3.0 Controller:
    8 x USB 3.0/2.0 port(s) (4 at the back panel, 4 mid-board)
    Workstation Features 7 x PCIe x16 slots
    ASUS Dr. Power
    12K-hour Capacitors
    ProCool Power Connector
    Q-Code Logger
    Special Features 5-Way Optimization by Dual Intelligent Processors 5
    5-Way Optimization tuning key consolidates TPU, EPU, DIGI+ Power Control, Fan Xpert 3, and Turbo App together

    - Auto Tuning
    - GPU Boost
    - TPU switch

    - EPU
    - EPU switch

    ASUS Digital Power Design:
    - Digital 8 Phase Power Design
    - Digital 4 Phase DRAM Power Design
    - CPU Power Utility
    - DRAM Power Utility

    ASUS Exclusive Features:
    - MemOK!
    - AI Suite 3
    - Ai Charger+
    - USB Charger+
    - M.2 & SATA Express
    - ASUS UEFI BIOS EZ Mode, featuring friendly graphics user interface
    - USB 3.1 Boost
    - Disk Unlocker
    - Turbo LAN
    - Crystal Sound 2

    Interactive HomeCloud
    - Media Streamer

    - Precision Tweaker 2
    - ASUS O.C. Tuner
    - ASUS CrashFree BIOS
    - ASUS EZ Flash
    - ASUS USB BIOS Flashback
    - Push Notice

    ASUS Q-Design:
    - ASUS Q-Shield
    - ASUS Q-Code
    - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
    - ASUS Q-Slot
    - ASUS Q-Connector

    Media Streamer
    Special Memory O.C. Design
    Turbo App
    Fan Xpert 3
    Operating System Support Windows 8.1, 8, and 7
    Back I/O Ports 2 x eSATA
    2 x LAN (RJ45) ports
    2 x USB 3.1 (teal blue)
    8 x USB 3.0 (blue)
    1 x Optical S/PDIF out
    8 x Audio jacks
    1 x USB BIOS Flashback Button
    1 x Q-Code Logger button
    Internal I/O Ports 2 x USB 3.0 connectors support an additional 4 x USB 3.0 ports (19-pin)
    2 x USB 2.0 connectors support an additional 4 x USB 2.0 ports
    2 x SATA Express connectors: gray, compatible with 2 x SATA III 6.0 Gb/s ports
    1 x M.2 Socket 3 for M Key, type 2260/2280 devices
    1 x TPM connector
    8 x SATA III 6 Gb/s connectors
    1 x CPU Fan connector (1 x 4-pin)
    1 x CPU OPT Fan connector (1 x 4-pin)
    4 x Chassis Fan connectors (4 x -pin)
    1 x S/PDIF out header
    1 x Thunderbolt header
    2 x 8-pin EATX 12 V Power connectors
    1 x 6-pin EATX 12 V_1 Power connector
    1 x 24-pin EATX Power connector
    1 x 8-pin ATX 12 V Power connector
    1 x EZ XMP switch
    1 x Front panel connector
    1 x System panel (Q-Connector)
    1 x DRCT header
    1 x MemOK! button
    1 x Thermal sensor connector
    1 x TPU switch
    1 x CPU/DRAM overvoltage jumper
    1 x Power-on button
    1 x Reset button
    1 x Clear CMOS button
    1 x Dr.Power switch
    1 x 3-pin CHASSIS (Chassis intrusion) connector
    BIOS 128 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI2.7, WfM2.0, SM BIOS 2.7, ACPI 5.0, Multi-language BIOS, ASUS EZ Flash 2, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Quick Note, Last Modified log, F12 PrintScreen, F3 Shortcut functions, and ASUS DRAM SPD (Serial Presence Detect) memory information
    Manageability WfM 2.0, DMI 2.7, WOL by PME, PXE
    Support Disc Drivers, ASUS Utilities, EZ Update, Anti-virus software (OEM version)
    Environment Operating Temperature: 50 to 95°F / 10 to 35°C
    Non-Operating Temperature: -40 to 158°F / -40 to 70°C
    Non-Operating Humidity: 20 ~ 90% (non-condensing)
    Form Factor CEB Form Factor
    12 x 10.5" (30.5 x 26.7")
    Packaging Info
    Package Weight 5.95 lb
    Box Dimensions (LxWxH) 13.2 x 11.6 x 3.3"

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