- Network Admin
DHCP Explained: How Your Devices Get Their IP Addresses
16 Aug, 2025

£277.30 inc. VAT
AI-generated summary
This is one of those “it’s not glamorous, but it solves a real problem” accessories. If you’re running a NetShelter WX-style setup and you’ve got a bit of heat build-up (servers that don’t throttle gracefully, dense stacks, poor airflow days), a roof fan tray can help keep temps steadier without turning your rack into a DIY science project. At £230.18 ex-VAT, it’s priced like proper infrastructure rather than a quick fix—so I’d only buy it if you genuinely need improved circulation, not just because it exists.
Who should buy: datacentre closets, MSPs, and IT teams supporting multiple small sites where airflow is inconsistent and you want predictable cooling inside the enclosure. It’s especially worth it if you’re already noticing higher ambient temperatures around the top of the rack or you’re planning growth and want headroom. Who shouldn’t: if your rack is already well within temperature comfort ranges or you’re relying on general room cooling alone, this may be wasted spend—fans help, but they can’t compensate for fundamentally bad placement, blocked vents, or overloaded gear.
My honest take: this is good value when it matches a specific airflow need and your enclosure is the right model family. If you’re unsure, verify compatibility and whether the tray actually addresses your hot spots (top exhaust vs overall circulation) before ordering—because the “install and hope” approach is where people regret accessories like this.

APC
APC NetShelter SX Gen 2 - Rack cabinet - 2124H x 750W x 1200D mm, with sides - floor-standing - black - 45U - 19" - TAA Compliant - for P/N: SMT1000RM1U, SMT750RM1U, SRTL10KRM4UT, SRTL5KRM2UI-HW, SRTL5KRM2UT-HW, SRTL8KRM4UT

APC
APC NetShelter SX Gen 2 - Rack cabinet - 2124H x 750W x 1070D mm, with sides - floor-standing - black - 42U - 19" - TAA Compliant - for P/N: SMT1000RM1U, SMT750RM1U, SRTL10KRM4UT, SRTL5KRM2UI-HW, SRTL5KRM2UT-HW, SRTL8KRM4UT

APC
APC IT Power Distribution Module - Automatic circuit breaker (plug-in module) - AC 400 V - 3-phase - output connectors: 1 - for P/N: SY16K48H-PDNB, SY32K48H-PDNB, SY48K48H-PDNB, SY64K96H-NB, SY96K160H-NB, SY96K96H-NB

APC
APC Metered Rack PDU AP7821B - Power distribution unit (rack-mountable) - AC 100-240 V - Ethernet 10/100 - input: IEC 60320 C20 - output connectors: 8 (power IEC 60320 C13) - 1U - 2.4 m cord - for P/N: SRTL2K2RM1UWC, SRTL2K2RM1UWNC, SRTL3KRM1UIC, SRTL3KRM1UWC, SRTL3KRM1UWNC