The Alphacool ES 1U ServerRack has been specifically optimised to accommodate water cooling sets that can dissipate up to 490W of waste heat in this enclosure. For this purpose, the enclosure not only offers a mounting frame for a maximum of one 7x40mm full copper radiator of the Alphacool NexXxoS series. The optionally available Alphacool ES 40 mm fans with PWM control ensure optimum cooling performance.
Drives
The 1U server rack offers mounting options for two 5.25" drives on the left and right side of the front. Each 5.25" bay offers the alternative of mounting two 3.5" drives. A holding frame for mounting up to four 2.5" drives is pre-mounted in the centre front. This holding frame can be mounted at five other positions in the enclosure.
Mainboard
For mounting an SSI-EBB mainboard, all the usual screw connection options in the classic ATX format are available. This includes all mounting holes for Mini-ITX to EE-ATX. A graphics card in PCIe or 0.8" low-profile format can also be installed via a riser cable. A corresponding panel for 0.8" cards is pre-mounted in the case.
Water cooling for 490W waste heat
With an appropriate water cooling system, up to 490W of waste heat can be dissipated in this case. Alphacool offers special water cooling sets for this purpose, which can be individually configured and are delivered to the customer pre-filled. The mounting frame for the radiator and fans can be moved within the enclosure to suit any set-up.
Please note: The case comes without I/O panel. Alphacool offers a separate set of I/O panel and cable set under item number 1021066.
| Technical data | |
| Dimensions (L x W x H) | 730,75 x 478,50 x 44,45mm |
| Weigth (only case without common rails) | 7,62 kg |
| Form factor | 1U |
| Material | Galvanised sheet steel |
| Material thickness | 1,2 mm |
| Mainboard form factor | SSI-EEB: Mini-ITX, Micro-ATX, ATX, E-ATX, EE-ATX |
| Fan/radiator bracket | 7 x 40 mm |
| Color Case | Grey |
| Color Front | Black |
The EK-Pro CPU WB 4677 Rack Ni + Acetal is a dedicated enterprise-grade water block with 1U chassis compatibility specifically developed for LGA 4677 Intel® Xeon processors. The core of the new CPU water block was refined to manage the growing heat dissipation of new processors and to upgrade connectivity options for server rack requirements. The new server/workstation-grade CPU water block is compatible with 1U chassis type and suitable for use in server racks.

The EK-Pro CPU WB 4677 Rack Ni + Acetal water block features a total of 4 G1/8" threaded side ports for low-profile usage.
This enterprise cooling solution is built with performance, reliability, serviceability, and no compromises in mind. This water block meets these demands with top thermal performance and unparalleled connectivity, making it the perfect choice for liquid cooling high-density computing systems.
The EK-Pro CPU WB 4677 Rack Ni + Acetal water block features a precisely machined copper base (coldplate) made from the purest copper available on the market and is treated with nickel electroplating. The top is CNC machined from durable black POM Acetal, and the hold-down bracket is made of laser-cut stainless steel.
Intel® CPU socket compatibility:
- LGA 4677

Enclosed:
- EK-Pro CPU WB 4677 Rack Ni + Acetal Water Block
- 2x EK plug G 1/8”
- EK-Loop Multi Allen Key (6mm, 8mm, 9mm)
- 1x Torx T30 Key - 1x 5mm Allen Key
- Thermal grease (1g)


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