Rosewill RSV-L4000C - 4U Rackmount Server Case / Chassis for AI / Bitcoin Mining Machine, Supports 8 Graphic Cards

Pros: plan on doing 6 gpus each if Newegg keeps this in stock. liked the 9 smaller fan mounts with multiple mounting locations for the mounting plate. if you were forced too, drilling holes to mount gpus reversed wouldn't be too bad. definitely recommend high speed fans on front middle and back. this goes in a rack... who cares about fan noise.

Cons: motherboard mounting plate was not drilled properly. resulting in my mother board not seating fully on one end of the back plate and 1/2 inch off the other end. meh it's a set it and forget it case but come on... measure twice drill once please.

Overall Review: wish there was a substitute option to mount a second power supply 90° turn and next to current psu above CPU position. it would sacrifice two fans but could split load between pcie daughter board power and 6pin gpu power will buy again if in stock. need 5 more

Pros: Plenty of room in the case. Has front 120mm grilles.

Cons: No space for a second PSU In order to run 8 cards, you need some serious CFM fans in the front, with the front bezel removed, (restricts airflow significantly) Somewhat flimsy construction. Fan wall needs to be removed to maximize airflow.

Overall Review: With all of the modifications required to make this case usable in it's intended role, it should be under $100, but it's double that. Most of Rosewill's products are in that range, and I don't see what makes this so special other than the company is trying to gouge miners. Unfortunately there's a big lack of quality 4u bitcoin cases on the market. I'll buy another one, only because there isn't good alternatives.

Pros: - Adjustable fan rails in the middle, with PWM breakouts (molex powered). - Reversible support rail for GPU's: 6 pairs of holes on one side, 8 pairs of holes on the other. - Lots of room inside for cable management. - Dedicated area for a single 3.5inch drive or 2.5inch drive, near the SATA ports of the motherboard. - Good for modification if you're not completely satisfied. - Clean look, solid build.

Cons: - Requires a 1200W or more PSU if you're going to be filling it up with 6x of anything. This raises the cost of each individual PSU, versus multi PSU power supplies. Would be nice if it was compatible with server PSU style since they are cheaper. I doubt there will be room for 2 psu's here. - No mounting on floor for PCI extenders under the video cards. - Doesn't come with fans. You'll need 3x 120mm in the front, 5x 80mm in the middle, and optionally 4x 80mm in the back.

Pros: With the top off it doesn't get too hot. /shrug

Cons: I wasn't able to fit my PSU inside of the case and it's cables... that wasn't the best buy I made either though as it's cables were pretty difficult to wrangle. Even with all of the fan mounting locations, it just does not allow enough air flow. If you mount 6 cards in here, there isn't enough space between them to get the airflow from the 120's over them efficiently.

Overall Review: It would have been great if this would have worked out, I really was hoping it would and then I could rack it. I should have listened to reviews on other sites though, it just doesn't move enough heat out through host. You would need to be running this in a temp controlled data center to have it be worth your while.... even then the cost of colocating is probably going to offset any profits you make. It's not the worst $200 I've spent in my life because it holds everything, except for the PSU, and with the top off I can mine cryptonight at a fairly decent temperature. If you're going to do ethash or equihash (the only other two I tested), you're going to be running too hot even with the top off. Maybe I'll try cutting some holes in the top since I'm not using it anyway and see if I can mount some more fans.

Pros: I like the reversible front GPU mounting, allowing for 6 or 8 GPUs.

Cons: I think the reversible front GPU mounting should be for 7 or 8 GPUs, 6 just leave too much unused space on ether end. To use the Rosewill Hercules 1600w power supply, it is best to ether use only 6 wide and short GPUs. For 8 GPUs, the first 6-40mm x 300mm GPUs, followed by 2 40mm+ x 250mm GPUs in positions 7,8 (from left to right) to allow for wires to be routed to the back of the power supply. You may have to move hard drive mount forward to allow for routing for riser cables.

Overall Review: I would recommend this case if you have a clean environment, because dust will clog the filter on the front of the panel. If you see the cards are getting hot, it means it's time to clean the filter on the front of the panel. Because i have a very clean environment, i just removed it.

Pros: * Good value * 4U * Can flip over GPU mount to take 6 or 8 cards

Cons: * Needs some mods to get the right airflow, but they're easy to do (see below). * mid case 5 fan doesn't do much, make the mods to the vent holes and you don't need this and it can come out. * Wish it was a thumb turn not a lock with a key sticking out, there's a power switch in the back and USB in the back, so what exactly are you locking up? Just a key to lose. * Would be nice if there was a pig tail to a HDMI up front so I don't have to leave the onboard graphics turned on to configure. * The sheet metal covering the fan blades could be a better design letting more air through, both in the front and the back, I had an old "B" model of this case and made a front 3 fan mount without covers, and it runs 3 degrees cooler with same configuration. I know, it needs something there for finger protection/liability, but it could be a much cleaner design allowing for more air to get to the fan. * If you want a 4U solution for mining, this IS a good case and I'd recommend it, just take out the mid case fans, remove the plastic cover and filter, tape up the extra "vent" holes with aluminum (or other high heat) tape, and you're good to go.

Overall Review: It's a good case, runs fine with 6 cards as is, if you want 8 you have to make some modifications to get the right cooling. Remove the inside plastic and filter from the door (four #1 phillips), and tape up the holes below the two rear fans opposite the power supply. You need to create airflow which is done with pressure differential more than velocity, drilling holes near a fan just causes the air to circulate locally. The filter up front and plastic filter cover just blocks the front fans. Do this and you can get rid of the mid-case 5 fan mess, same problem, no pressure differential there and just gets in the way of cabling and consumes power. I use aircraft aluminum tape to cover the extra holes in the back that prevent the correct flow of air through the case. I run a 1300W EVGA PSU, and eight 1660Tis in a room @ 75F(24C) and my two hottest cards run @ 65C, coolest about 55C, mining ETH @ 60%TDP and 29MH/s. More holes and fans are never as good as a well design baffle forcing air to go where you want it. Few simple design changes and this would be an awesome 5 star case out of the box.

Pros: I'm sure it could easily fit 8 GPU's. I only put in 6, but there is plenty of room for 2 more. Once you add 3 120mm fans, it runs a respectable temperature. Its a pretty solid case if you want to mine and keep things in a rack.

Cons: Some parts are thin metal, but its not a huge deal. It doesnt come with fans or rails. I docked one star because of the lack of rails.

Overall Review: I'm pretty happy with mine. I have quite a bit of room in my rack, so I'm thinking about building a second one, and then maybe a third. I'll likely use this case again for those builds.

Pros: - Got it for FREEEEEEE with Purchase of another Rosewill server case.

Cons: None it was free

Overall Review: Even tho there are no hard drive cages. I will be buying HDD pci brackets and turn this into my new plex server.