ASUS server, ENERGY STAR certified
ASUS RS521A-E12
1 rack-mount server, model number RS521A-E12-RS24U.
Processor sockets
1
Cores per processor
48
Memory (as tested)
192 GB
Idle power (typical config)
113 W
Of 306 certified rack-mount servers, 52 have a lower idle power (typical config) than the RS521A-E12 (113 W).
- Maker
- ASUS
- Model
- RS521A-E12
- Model number
- RS521A-E12-RS24U
- Type
- Rack-mount
- Processor sockets
- 1
- Processor (as tested)
- EPYC 9455P
- Processor brand
- AMD
- Cores per processor
- 48
- Memory (as tested)
- 192 GB
- DIMM slots
- 24
- Expansion slots
- 9
- ECC memory
- Yes
- Idle power (typical config)
- 113 W
- Liquid cooling as shipped
- No
- On the market since
- Oct 2024
- ENERGY STAR certified
- 25 Feb 2025
Certified under the same record
The maker lists these as the same machine or a variant of it: RS520A-E12-RS12U, RS520A-E12-RS24U, RS521A-E12-RS12U.
Source: ENERGY STAR certified servers dataset, US EPA, record 3998718, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the RS521A-E12
Certified servers from other makers, same color class, within 20% of its speed.
| Model | Type | Processor sockets | Processor (as tested) | Idle power (typical config) |
|---|---|---|---|---|
| DELL E95S | Rack-mount | 1 | AMD EPYC 9454 48-Core Processor | 123 W |
| DELL EMC E95S | Rack-mount | 1 | AMD EPYC 9454 48-Core Processor | 123 W |
| DELL E94S | Rack-mount | 2 | AMD EPYC 9454 48-Core Processor | 153 W |
| DELL EMC E94S | Rack-mount | 2 | AMD EPYC 9454 48-Core Processor | 153 W |
| XFUSION G8600 V7********** | Rack-mount | 2 | Intel(R) Xeon(R) Platinum 8468 | 441 W |
| XFUSION G5500 V7********** | Rack-mount | 2 | Intel(R) Xeon(R) Platinum 8468 | 550 W |
ASUS
More ASUS servers
| Model | Type | Processor sockets | Processor (as tested) | Idle power (typical config) |
|---|---|---|---|---|
| ESC4000A-E12 | Rack-mount | 1 | EPYC 9374F | 117 W |
| ESC4000-E11 | Rack-mount | 2 | Xeon(R) Gold 6442Y | 274 W |
| ESC8000A-E12 | Rack-mount | 2 | EPYC 9354 | 399 W |
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| RS501A-E12 | Rack-mount | 1 | EPYC 9335 | 352 W |
| RS700A-E12 | Rack-mount | 2 | EPYC 9634 | 261 W |
| RS700A-E13 | Rack-mount | 2 | EPYC 9555 | 246 W |
| RS700-E11 | Rack-mount | 2 | XEON(R) GOLD 6544Y | 179 W |