Hydra III 8 GPU 4U Server Case

$ 199.99
Loading reviews...
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case
  • Hydra III 8 GPU 4U Server Case

Hydra III 8 GPU 4U Server Case

$ 199.99
Loading reviews...

The Hydra 3 is a custom made 4U server case for high density GPU mining using 8 or 6 cards, without the unwanted air leak of open frames. This case supports eight full-length graphics cards, one ATX/Micro-ATX motherboard, and single power supply. Full depth 4U chassis places the MB and PSU behind the cards, to give you more space for dual CPU applications. The front railing where the GPUs mount can be switched from 8x to 6x mounting patterns to give additional space between your cards when only using 6 cards. Thick industrial quality steel offers outstanding strength to hold all your cards without flexing for safer storage and transport. This full depth 4U server case can be easily stacked or rack mounted. Extended distance from MB to GPU allows optimal placement of your cards. You can install 3 x 120mm + 4 x 80mm high RPM server fans.

This is the best enclosure type for high-performance number crunching machines that generate a ton of heat. Closed cabinet provide a critical active airflow management (front-to-back) to prevent hot exhaust air from circulating back into the equipment air intake.

  • Customer Reviews

    Based on 3 reviews Write a review

    Our refund policy lasts 45 days from the date of your purchase. If 45 days have gone by since your purchase date, unfortunately we can’t offer you a refund. To be eligible for a refund, item must be unused and in the same condition that you received it. It must also be in the original packaging and includes all accessories. We can only issue refunds for items that were purchased directly with us and not from other retailers.


    An order can only be cancelled if the shipment has not yet been confirmed. Once an order has been shipped, you may contact us to return the item for refund. We ship most orders within 24 hours.


    Item that is damaged, missing parts, not in the original condition, have obvious signs of use for reasons not due to our error, or returned later than 30 days after an RMA number has been issued will not be accepted for return. Please note that in some situations, buyers could be responsible for return shipping and any applicable restocking fees can be deducted from the refund. Returns that are out of policy may be refused or charged a restocking fee of up to 25%.


    Step 1 Submit your return request to support@nanoxiausa.com. Provide a copy of the purchase receipt/invoice, and details of return reason.

    Step 2 A support agent will reply with RMA number and shipping label. Properly pack the product for shipping. Product returned damaged or without an RMA number may be refused. Send the return package to:

    Nanoxia USA RMA#_____
    17560 Rowland Street, Dock 4-10
    City of Industry, CA 91748

    Step 3 Once your return package is received and inspected, a refund will be processed and applied to your original method of payment within 2-3 business days.


    Items marked as "open box" are products that were purchased and delivered to other customers, and then returned to Nanoxia. Due to the varying quality of items returned, Nanoxia only guarantees that you will receive the item itself, accessories and original packaging may not be included. Nanoxia tests open box items for basic functionality only. Open box items may show visible blemish (i.e. scratch) or damage (i.e. dent) as a result of it having been previously used. Open box items are sold considerably under cost, and are sold as is, with no refund/exchanges/replacements or warranty. Please purchase open box items only if you know how to deal with potential missing accessories, visible blemishes, and/or damages.


    We occasionally allow pre-orders for an item before it gets in stock. Just look for the Pre-Order button where you normally see Add To Cart. Items marked as "pre-order" are available for immediate purchase, but will be shipped at a later date. An estimated shipping date is indicated on the product page. Whenever you pre-order an item, the price we charge will be the lowest price offered between the time you placed your order and the day item is shipped.


    Store credit may be given in lieu of a refund when we are unable to reimburse you for returned items in the same way you paid for them. Store credit cannot be redeemed for cash. On the check out page, you can choose whether to use your available store credit in lieu of other payment.

  • Overview
  • Specifications
  • Downloads

Full Depth 4U Chassis

Without Legacy Drive Cages or Restrictive Midplates

The Hydra 3 has been designed with a front-to-back airflow. There are no legacy drive cages or restrictive midplates that block airflow. Your components all receive a proper amount of cold air and are able to operate at their full potential.

Ultimate in heat control

Critical active air flow management

Dual CPU Applications

Optimized for Aftermarket GPU

Up to 8 Dual Slot Aftermarket Cards With Bigger PCB/Cooler

Aftermarket cards tend to be taller around 140 to 150 mm, and some are wider around 2 to 2.5 slot. Most do not have recessed power connectors and require extra room for those cables. The Hydra 3 has taken into account all these details to ensure everything fits.

Optimized for 8 GPU

Designed for 8 dual slot aftermarket cards with bigger PCB/cooler up to 330 mm length and 150 mm height.

Adjustable GPU Bracket

Easily accommodates large cards of different heights and lengths; Brackets switch from 8 to 6 mounting patterns when only using 6 cards.

Thick 1.0 mm SECC Steel

Holds your cards without flexing for safe storage and transport; Includes two aluminum handles.

Rack Mountable/Stackable

Maximize your profit to space ratio using industry standard 19 inch wide server racks and rails.

Technical Specifications



Case Type

4U Server Case


ATX, Micro-ATX

Dimensions (HxWxD)

178 x 430 x 650 mm (without rack ears)

Max PSU Size


Max GPU Length

(x8) 330mm

Max CPU Cooler Height


Drive Mounts

(x2) 2.5"/3.5" internal

Fan Mounts

Front: (x3) 120mm
Back: (x4) 80mm


(x1) Mounting bracket for 8 or 6 GPU
(x2) Aluminum handles
(x1) Power switch
(x1) Bag of screws for PSU, MB, HDD, SSD, Fans, cable ties and nut setter for MB standoff

What's in the Box?

Hydra III 4U Chassis

Mounting Bracket

Aluminum Handles

Power Switch

Bag of Screws for PSU, MB, HDD/SSD, and Fans

Cable Zip Ties

Rexgear III User Manual and Installation Guide

Customer Reviews View on Amazon Write a Review

  out of 5 stars

You Must purchase this Product before to post a Review.

5 star
4 star
3 star
2 star
1 star