# What is the most energy-efficient mini-itx home server? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the most energy-efficient mini-itx home server?

## Products

### ASRock Rack AM5D4ID-2T/BCM
```yaml
product: asrock-rack-am5d4id-2t-bcm
brand: ASRock Rack
price_gbp: 420.86
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 4 DIMM slots, DDR5 ECC/non-ECC UDIMM, up to 192GB
cpu_model: AMD EPYC 4004, AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
dimensions: 6.7in x 8.2in
expandability: 1 PCIe 5.0 x16 slot, 1 OCuLink PCIe 4.0 x2, 1 M.2 PCIe 4.0 x4
number_of_usb_ports: 4
```

- **Price:** £420.86 [^1]
- **Summary:** The ASRock Rack AM5D4ID-2T/BCM is a deep Mini-ITX server motherboard supporting AMD EPYC 4004 and Ryzen 7000, 8000, and 9000 Series processors. It provides four DDR5 DIMM slots, dual 10GbE networking, IPMI remote management, PCIe 5.0 expansion, and M.2 storage support, making it suitable for compact server and workstation builds.
- **Ideal For:** It suits an energy-efficient Mini-ITX home server because its compact 6.7in x 8.2in design supports efficient AMD processors, up to 192GB of DDR5 memory, a single PCIe 4.0 x4 M.2 drive, dual 10GbE, and IPMI remote management without requiring a discrete management card.
- **Additional Sources:** [^2]

### ASRock Rack B550D4ID-2L2T
```yaml
product: asrock-rack-b550d4id-2l2t
brand: ASRock Rack
price_gbp: 268.04
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: Up to 128GB DDR4 ECC/non-ECC UDIMM across 4 slots
cpu_model: AMD Ryzen 5000 and 3000 Series Desktop Processors
dimensions: 6.7 in x 8.2 in
expandability: 1 x PCIe 4.0 x16, 4 x SATA 6Gb/s, 1 x M.2 PCIe 4.0 x4 or SATA 6Gb/s
number_of_usb_ports: 4
```

- **Price:** £268.04 [^3]
- **Summary:** This compact Deep mini-ITX server motherboard supports AMD Ryzen processors, up to 128GB of DDR4 ECC or non-ECC memory, and multiple SATA and M.2 storage connections. Its 10GbE and 1GbE networking, IPMI management, and PCIe 4.0 expansion make it suitable for compact home servers, NAS systems, and small business infrastructure.
- **Ideal For:** It suits an energy-efficient mini-ITX home server because its Deep mini-ITX 6.7 in x 8.2 in design supports efficient AMD Ryzen processors, up to 128GB of DDR4 memory, flexible SATA and M.2 storage, and remote IPMI management.

---
## References & Sources
[^1]: OCTO24, accessed 2026-09-13. https://www.octo24.com/en/ASRock-AM5D4ID-2T-BCM-ASRock-Mainboard-AM5D4ID-2T-BCM::717816.html
[^2]: Star Tech, accessed 2026-09-13. https://startech24.com/produkti/asrock-am5d4id-2tbcm-motherboard-21294438
[^3]: Newegg, accessed 2026-09-13. https://www.newegg.com/global/uk-en/asrock-rack-b550d4u-2t-supports-amd-ryzen-5000-g-series-desktop-processors-with-radeon-graphics-supp/p/N82E16813140072