HPE P40432-B21 — 900GB 15K SAS SFF HDD (512n, Mission-Critical, Basic Carrier)

What it is: A genuine HPE 900GB, 15,000-rpm, SAS 12Gb/s, 2.5" SFF Mission-Critical (MC) hard drive with 512n sector format, supplied in an HPE Basic Carrier (BC) and backed by a 3-year warranty. Built for ProLiant Gen10/Gen10+ (and newer where supported).

Why buyers pick P40432-B21 (plain English)

• Max spindle speed: 15K rpm for snappy access and lower latency than 10K/NL-SAS tiers.

• SAS reliability & dual-porting: resilient backplane connectivity and steady performance.

• No tray/firmware surprises: ships in Basic Carrier (BC) for current ProLiant bays with HPE-qualified firmware.

• Enterprise duty cycle: MC line for 24×7, I/O-intensive workloads.

60-second spec box

Capacity / speed

• 900GB, 15,000 rpm

Interface

• SAS 12Gb/s (dual-port)

Form factor

• 2.5" SFF, hot-swap in Basic Carrier (BC)

Format

• 512n native sector size

Workload class

• Mission-Critical (MC) enterprise HDD

Typical power

• ~4W idle • ~6–8W active (range varies by lot)

Warranty

• 3-year HPE warranty

Where it fits (and when to choose it)

• Perfect for: OS/VM/system tiers and application servers that benefit from 15K rpm responsiveness while keeping SAS backplane and hot-swap convenience.

• Pick 10K SAS (1.2TB/2.4TB) if you need more capacity per spindle with slightly less performance.

• Pick SED/FIPS variants if your environment requires self-encrypting drives.

• Pick SAS/NVMe SSDs for heavy write IOPS or sub-millisecond latency tiers.

Quick compatibility tips

• Designed for ProLiant Gen10/Gen10+ SFF BC bays; always verify your exact server QuickSpecs/firmware matrix.

• For older carriers (SC/LPCC) or LFF chassis, match the carrier type to your enclosure.

TL;DR

P40432-B21 = 900GB 15K SAS, SFF, 512n, in Basic Carrier, 3-yr HPE warranty—a compact, ProLiant-ready enterprise HDD when you want the fastest spinning-disk tier with HPE-qualified compatibility.