- Azure Cloud
How to Automate Azure Resource Management
28 Sep, 2025







£1401.78 inc. VAT
AI-generated summary
The ASUS RS300-E12-RS4 is the kind of 1U rack server that makes sense when you want something sensible, compact, and “just works” without turning your weekends into a support ticket marathon. At £1168.15 ex-VAT, you’re paying for a working platform rather than a budget science project—good if you’re setting up a small office rack, a lab, or an internal service where uptime and straightforward management matter more than gaming-grade performance. In this price band, the real question is usually thermals/noise in a proper rack environment, and whether your workload fits a dense 1U layout (think virtualization basics, file/app workloads, light database, monitoring, backup targets, that sort of thing).
That said, I’d be cautious if you’re expecting huge headroom or planning to grow fast. 1U machines are compact by design, so expansion, cooling margins, and sustained performance can become limiting once you stack heavier workloads. If you need lots of sustained throughput, multiple concurrent services, or a clear upgrade path, it might be worth stepping up to something more spacious—even if it costs more—or comparing against similarly priced alternatives from the usual enterprise-minded brands. For buyers: if this is for a small deployment that won’t constantly hammer the CPU and you want reliable rack real estate, it’s a reasonable buy. If you’re building something that’s going to scale hard over time, I’d look elsewhere first.

Lenovo
Intel Xeon Gold 6128 - 3.4 GHz - 6-core - 12 threads - 19.25 MB cache - for ThinkAgile VX3320 Appliance, VX3520-G Appliance, VX5520 Appliance, VX7520 Appliance

Asus
ASUS ESC4000 G4 - Server - rack-mountable 2U - 2-way - no CPU - RAM 0 GB - SATA - hot-swap 3.5" bay(s) - no HDD - AST2500 - Gigabit Ethernet - no OS - monitor: none

Lenovo
Lenovo ThinkSystem SR250 7Y51 - Server - rack-mountable 1U - 1-way - 1 x Xeon E-2278G / up to 5 GHz - RAM 16 GB - SATA - hot-swap 2.5" bay(s) - no HDD - Matrox G200 - Gigabit Ethernet - no OS - monitor: none

Lenovo
Intel Xeon Gold 5120 - 2.2 GHz - 14-core - 28 threads - 19.25 MB cache - for ThinkAgile VX3320 Appliance, VX3520-G Appliance, VX5520 Appliance, VX7520 Appliance