Phanteks Eclipse P400S Tempered Glass Case Review
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Phanteks Eclipse P400S Tempered Glass Case Review

April 27th, 2017 James Leave a comment Go to comments



We’ve seen numerous Phanteks Cases here at pcG over the last year or two and all but one has walked away with a Gold or Platinum award, with the Phanteks Enthoo EVOLV ATX picking up the only Silver. Most of these Cases though have commanded a premium when it comes to pricing as all have been from the Phanteks’ Enthoo Range. This next Case though, from Phanteks, is from their Eclipse range and is in fact the cheapest Phanteks Case that we have seen so far here at pcG. This is the £80 Phanteks Eclipse P400S Tempered Glass (Gun Metal).

The Phanteks Eclipse P400S Tempered Glass (the P400S Glass from now on) is an ATX midi-tower Case made from steel and ABS with a single tempered glass panel. The Case itself measures in at (210 mm x 465 mm x 470 mm (W x H x D)) and weights in at around 7.0kg. The P400S Glass features two pre-installed 120mm fans, with up to six 120mm fans or five 140mm fans supported. In addition to this the P400S Glass supports two HDDs and/or up to four SSDs. An additional four HDDs can be added by way of Phanteks Modular HDD Brackets (PH-HDDKT_02). The following radiators are also supported, front: 360mm and rear: 120mm. The P400S Glass supports Graphics Cards up to 395mm in length, CPU Coolers up to 160mm in height and Power Supplies up to 270mm in length. In addition to this the P400S Glass comes with an integrated RGB controller with a 300mm Phanteks RGB LED Strip and soundproof panels (front, top & right). There are various colour options to choose from; we will be looking at the Gun Metal version other options are as follows (here).


‘Without much effort, the P400S allows users to create a clean and beautiful system. Ambient RGB illumination adds character while the solid metal exterior gives the case a simple elegant design. The P400S is suitable for beginners and experienced system builders with all the extra features. The P400S comes with sound damping panels and a 3-speed fan controller to enhance acoustical performance.’



The Phanteks Eclipse P400S Tempered Glass Case arrived safely at pcG thanks to the fact that it’s actually shipped in not just one box but two. The outer plain brown cardboard box simply sports an outline drawing of the Case within, well within the next box that is… 😮



The inner box is still a simple cardboard box and it features the same outline drawing as the outer box and well as a detailed exploded view of the Case on the back of the box. As you can see the Case itself was adequately packaged and presented, protected by two hard foam blocks and covered with a plastic bag.



Within the Case we find a small brown accessory box, this contained two additional mesh covers for the top of the Case, the additional 300mm Phanteks RGB LED Strip, RMA notice, Quick Installation Guide and a small plastic bag containing a plethora of cable ties and screws etc.


At the time of review the Phanteks Eclipse P400S Tempered Glass is retailing at Overclockers UK for approximately £80 and comes with an impressive 5 year warranty.



courtesy of Phanteks


  • Dimension: 210 mm x 465 mm x 470 mm (W x H x D) 8.3 in x 18.3 in x 18.5 in
  • Form Factor: Midtower
  • Material(s): Steel chassis, steel exterior, ABS, Tempered Glass side panel
  • Colour: Gunmetal Grey
  • Motherboard support: ATX, Micro ATX, Mini ITX, E-ATX *(up to 272mm wide, cannot use rubber grommets)
  • Front I/O: 2x USB 3.0, Mic, Headphone, Reset, RGB LED control
  • Side window: Yes
  • Soundproofing Panels: Yes, Front/Top/Right Side
  • Expansion slots: 7
  • Internal 3.5″: 6x (2x included)
  • Internal (dedicated): 2.5” 2x (2x included)
  • Cooling: Front – 120mm Fan x 3 (1 included), 140mm Fan x 2, Top – 120mm Fan x 2, 140mm Fan x 2, Rear – 120mm Fan x 1 (included)
  • Liquid Cooling: Front – Up to 360mm (with removal of midplate cover) or 280mm (without removal), Rear – 120mm
  • GPU Clearance: 395mm, 280mm (with optional HDD brackets installed)
  • CPU Cooler: 160mm
  • Cable Management: 25mm
  • PSU (including cable): 270mm
  • Model: PH-EC416PSTG_AG
  • Net Weight: 7 kg (15.4 lbs)
  • Gross Weight: 8 kg (17.6 lbs)
  • Package Dimension: 300 mm x 555 mm x 520 mm (WxHxD) 11.8 in x 21.9 in x 20.5 in
  • Warranty: 5 Years


  • Full Metal Body
  • Tempered Glass Side Panel
  • 300mm Phanteks RGB LED Strip Included
  • Clean interior – Featuring a PSU shroud
  • Soundproofing Panels + Top Covers
  • Fully equipped with dust filters
  • Ready for AIO Watercooling – Supports up to 360mm radiators
  • Equipped with 2 x 120mm fans
  • 25 mm cable management space + additional cable compartment in bottom, along with Phanteks Velcro cable ties
  • Front I/O (Hidden) – 2 x USB3.0, Headphone, Mic, LED Control, Reset, 3-Speed Fan Controller
  • RGB Power Light + Ambient Down Light, choose from 10 different colours, compatible with Phanteks RGB LED Strips

    * Additional details available here


    First Impressions



    First impressions of the Phanteks Eclipse P400S Glass are really rather good, the Case certainly belies its £80 price tag that’s for sure. The P400S Glass is a good looking and well made Case, as we have come to expect from Phanteks. It’s also got that smart tempered glass panel too. I also really like the colour, Gun Metal as its a break from the regular black and white Cases that are so common today. The overall styling is also good with the front panel providing most of the drama, although I’m not too sure about those buttons…



    As you can see from the image above the left side of the P400S Glass is dominated by the full size tempered glass panel. The panel itself is held in place by four screws outfitted with rubber washers to protect the glass. The tempered glass panel itself is clear and has no sign of a tint that I can see. The panel also features a black border that helps to tidy up the asethetics around the edge of the Case. The opposite side of the case has a simple steel panel held in place by two captive thumb screws. We see more and more of these captive (i.e. they stay attached to the panel) screws, but I’m not really a fan as they just seem to get caught up in the process…



    As I mentioned earlier the main drama is found at the front of the P400S Glass, with a very angular panel design. The panel itself is made from steel and ABS plastic with a vented section at both the top and the bottom (up underneath the panel) to aide in airflow. Under the lip (completely hidden) there are three buttons, fan, lighting and reset. Not only are these buttons hidden, you can hardy see the labels on the top of the Case to see what they do. They are also quite difficult to operate, but they do work… At the very base of the front panel we find a smart looking silver Phanteks logo. This area also gets illuminated when powered on.

    The front panel can be easily removed as it’s simply held in place by plastic clips, just pull gently as the base of the panel and voila. Now you can clearly see the RGB illuminating strip at the base of the Case as well as the single pre-installed 120mm intake fan. Either x3 120mm fans, x2 140mm fans and or up to a 360mm radiator can be installed here. Here you can also get access to the two small dust filters that are attached to the upper and lower vents.

    At the back of the Case we find a very simple and familiar layout. Top left we have the I/O shield cutout with the single 120mm exhaust fan fitted in slots allowing some vertical adjustment, which is always nice to see. Below this we find seven expansion slots complete with cover as they sit outside of the Case, something I’m not really a fan of, but hey I guess I wont use it that often. At the very base of the Case we find a regular PSU cutout complete with dust filter.



    When looking at the P400S Glass from the top we begin to see the similarities with the NZXT S340 Elite, another great Case. As shipped the P400S Glass is equipped with what is effectively two blanking plates the hide the grilled section at the top. There are two so you can fit either a 120mm or 240mm fan, note there’s very little (READ: not enough) room up here for a radiator and fan assembly. At the front of the panel we find the main power button complete with RGB LED illumination and over on the right we find the audio ports and x2 USB 3.0 ports.

    Looking at the base of the Case (hey that rhymes!) we can see that the P400S Glass sits up off of the desk on four legs equipped with rubber feet. Height up off of the desk is approximately 20mm. At the back of the case we also find a removable PSU dust filter that slides out at the back.



    Removing the left tempered glass panel (by removing the four screws, that also feature rubber washers) allows us to see a nice large, uncluttered interior space, that is, for a change free of those pesky HDD cages etc. The PSU area features a shroud meaning that visible PSU cable routing will be kept to a minimum. Atop the shroud at the front we can see mounting points for a water cooling pump/reservoir and to the right the single 120mm intake fan. Other than that there’s plenty of well positioned cable management holes, with the main two featuring rubber grommets. Also note the large CPU cutout, all black cabling and the visible (above right) noise dampening on the rear panel (also present on the top and front).

    Removing the right side panel reveals a good amount of cable management space, 25mm according to Phanteks and what is the start of a wiring loom. This loom and additional cabling can all be secured thanks to those Velcro cable ties; that are man enough to hold back even the largest of looms. There’s already a fair amount of cabling back here for the RGB lighting and fans, but thankfully this is all powered by a single SATA power connector and there’s not a Molex in sight. Hurrah! 🙂



    Looking at various other aspects of the P400S Glass; at the back of the Case we find two dedicated SSD brackets as well as a single HDD cage that features two sleds. Each sled can support either a single HDD or SSD. If more storage is still required additional brackets can be added via Phanteks Modular HDD Brackets (PH-HDDKT_02) that fit within the front of the Case. Note, no additional brackets are supplied by default.



    Above left we can see the removable PSU dust filter that simply pulls out at the back of the Case. The image above right shows the Phanteks built-in RGB lighting controller that’s hiding away in the top right corner of the Case. Note that the P400S Glass is equipped with RGB illumination and it also comes with a 300mm RGB LED strip included in the accessories box. It is also fully compatible with the new Asus Aura RGB motherboard range, and through use of the Phanteks RGB LED adapter cable (PH-CB_RGB4P) it can be synchronised with the Aura software to control both interior and exterior RGB functionality.



    As shipped the Phanteks Eclipse P400S Tempered Glass is equipped with two 120mm fans, one at the front as an intake an one at the back as an exhaust. This means that stock cooling potential of the P400S Glass is best described as adequate, I would have liked to have seen an additional fan and or the use of 140mm fans as the Case clearly supports them.


    Hardware Installation


  • Test Rig Setup

  • Case Phanteks Eclipse P400S Tempered Glass Power Supply SilverStone ST60F-ES230 600W Strider
    Motherboard ASRock Fatal1ty Z170 GAMING K6 CPU Intel Core i5-6600K
    CPU Cooler ID-Cooling FrostFlow 120 RAM G Skill Ripjaws 4 16GB
    Graphics Card Asus GTX 1080Ti “Founders Edition” SSD (M.2) Samsung SM951 512GB
    SSD Kingston SSDNow 200 v+ 60GB HDD Seagate 2TB SSHD


    The first task was to put together the Motherboard assembly (MB, CPU, CPU Cooler & RAM) for this review. This consists of our test motherboard an ASRock Fatal1ty Z170 Gaming K6, an Intel Core i5-6600K CPU, a ID-Cooling FrostFlow 120 AIO Liquid CPU Cooler and x4 4GB G.Skill Ripjaws 4 RAM modules.



    The next task was to install the Motherboard assembly and the Power Supply and complete the preliminary cabling. This was easy enough thanks to a large interior space that’s thankfully free of HDD cages (nice one Phanteks). One small issue I did run into though was the fact that I had to add an additional standoff and although it was supplied there was no insertion tool, which was a shame. Especially as I couldn’t screw the standoff in by hand, in fact I couldn’t make use of a spare insertion tool either as the standoffs supplied by Phanteks are bigger than the norm. All the more reason, Phanteks, to supply an insertion tool me thinks. 😮 With the Motherboard screwed into place and the PSU mounted preliminary cabling was easy enough with well placed holes and grommets.

    The next task was to install the ID-Cooling FrostFlow 120 AIO liquid CPU Cooler and our new test Graphics Card an Asus GTX 1080Ti Founders Edition. I was surprised though to find that there was now way to install this small AIO in the top of the Case, there’s simply not enough room, which seems odd. But as you can see it fitted with ease into the back of the Case where the original 120mm fan was replaced with the illuminating red version that comes with the FrostFlow 120. Installation of the GPU itself was easy, although I’m not really a fan of the external expansion slot mounts and its associated bracket as it just seems to be additional work for no real benefit, IMHO…

    But with that all said and done we can clearly see from the images above the P400S Glass is more than capable of offering up a very clean and tidy build. Cable management room at the back is excellent and with most of the additional cables tucked behind the Velcro straps, it’s easy to get that side panel back on also.



    The last task was to fit the supplied 300mm Phanteks RGB LED Strip (see image above right), this was mounted in the top of the Case at the front and powered by the built-in RGB lighting controller. Note that this is also compatible with Asus Aura Motherboard’s and can be further expanded upon.



    One of the best points about the P400S Glass is the inclusion of that RGB controller than not only changes the colour of the power button surround and the light at the bottom of the Case (by the Phanteks logo), it also controls the supplied 300mm LED strip as well. And, I can assure you the images above do it no justice at all because in the darkness the Case simply looks great, especially through the glass panel (not shown above due to reflections). There are ten colours supported and they are as follows: White, Dark Blue, Pink, Purple, Red, Orange, Yellow, Green, Cyan, Light Blue. Note, there is no off that I can find…


  • Acoustic Performance
  • The P400S Glass comes complete with an integrated fan controller that controls the two pre-installed fans, although more can be added. The controller features three speeds High, Medium and Low and the speed can be controlled by the (hidden) button on the left of the front lip of the Case. Using our testi equipment we found noise levels to be in the range of 37-40dBA depending on the speed selected, so generally relatively quiet. Note that there is no indicator as to what speed has been set, you’ll simply need to rely on your ears for that.


    Final Thoughts


    The Phanteks Eclipse P400S Tempered Glass may well be one of Phanteks budget Cases, but really there’s very little budget about it. Phanteks have produced a fine looking, quality Case, that’s got plenty of room, loads of cable management space and has great cooling potential. Add a fan controller and RGB illumination to the mix and you’ve got one of the best Cases on the market today.

    The Phanteks Eclipse P400S Tempered Glass arrived at pcGameware very well packaged as the Case sits not only well protected within its box, but that box is actually inside another box. Ok, so the boxes are plain cardboard eco-friendly examples but packaging and presentation was in keeping with the asking price.

    I must confess to not knowing too much about the P400S Glass before I unboxed our sample, but once out of the box it didn’t take long for me to be impressed with the (cheapest) Phanteks Case we’ve seen so far here at pcG. The £80 price tag totally belies how good the P400S Glass looks and what it offers. The Case itself looks great (in Gun Metal, other colours available) and has a premium look thanks to the use of quality materials and of course that full sized tempered glass panel. Add to that the inbuilt fan controller and RGB lighting and you’d be forgiven for thinking that the P400S Glass should cost way more than it does…

    The only real niggles that let the Case down are the odd buttons that control the fan speed, RGB lighting and Reset are oddly placed just under the top front lip and are somewhat difficult to operate. Also the fact that there no real room for a radiator and fan assembly at the top of the Case seems odd to me. But to counteract this, the buttons are hardly used once you’ve set the fan speed and RGB illumination to your liking and there is room for up to a 360mm radiator in the front of the Case. And, don’t forget that price tag BTW…

    Installation of our test system was easy thanks to a good internal layout with plenty of space, mainly thanks to no visible HDD cages (thank you Phanteks!). There’s also plenty of cable management space (25mm) at the back of the Case as well as large strong Velcro ties to hold everything in place. I would have liked to have seen a standoff tool supplied though as Phanteks appear to be using and odd sized standoff, although that’s a minor gripe. Overall the P400S Glass is an easy Case to install a Gaming system in and it’s easy to get that internal space (shown off by the glass panel) looking really smart and tidy.

    Let’s also not forget the RGB lighting that the P400S Glass features; not only does the power button feature RGB illumination, the base of the Case (at the front) also features RGB illumination, lighting up the Phanteks logo at the bottom. Phanteks also supply a single 300mm LED strip that you can place wherever you want. It’s easy to install thanks to the magnetic buttons and easy to wire up. Although Phanteks initial wiring for this is a little messy and could do with being tidied up a little. The overall effect with the tempered glass panel is great and there’s eight colours to choose from as well as a few illumination modes; Breathing, Rainbow etc.

    Thermal performance of the Phanteks Eclipse P400S Tempered Glass is best described as good with just a single 120mm intake fan and a single 120mm exhaust fan. I would have preferred to have seen a 140mm in the front (as the Case supports it) or an additional 120mm, even if this did bump the price up a little.

    The most important thing about the Phanteks Eclipse P400S Tempered Glass Case is to simply look at what it offers up for the money. At just under £80 at the time of review there’s very few Cases that can offer up so much for so little. It’s simply a great Case…



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    Overclockers UK

    Phanteks Eclipse P400S
    Tempered Glass


    Design/Quality pcGameware awards the Phanteks Eclipse P400S Tempered Glass a Platinum


    Many thanks to Phanteks for providing this sample for review


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