HP 2YY44AA#ABC EX900 500GB NVMe M.2 Internal SSD — main product image

HP 2YY44AA#ABC EX900 500GB NVMe M.2 Internal SSD

HP 2YY44AA#ABC EX900 500GB NVMe M.2 Internal SSD

Name: HP 2YY44AA#ABC EX900 500GB NVMe M.2 Internal SSD
Brand: HP
SKU: 2YY44AA#ABC

★★★★★4.6 (982 reviews)

500GB NVMe

The HP EX900 delivers up to 2,100 MB/s sequential reads over PCIe 3.0 x4, turning a SATA-bound system into a 4x throughput leap for large file transfers, OS boot, and application launches.

$45.99*

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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The HP EX900 is a PCIe 3.1 x4 NVMe 1.3 solid-state drive in the M.2 2280 form factor, targeting users upgrading from SATA SSDs or HDD-based systems who want NVMe throughput without paying Gen 4 pricing. Sequential read peaks at 2,100 MB/s and sequential write at 1,500 MB/s — numbers that represent a 3–4x improvement over any SATA SSD and eliminate storage as a bottleneck in typical consumer workloads. The 4-channel HP controller manages 3D TLC NAND with LDPC error correction providing real-time error detection and parallel decoding, which maintains data integrity across the rated 200 TBW write endurance. Random performance reaches 100,000 read IOPS and 80,000 write IOPS, supporting multitasking and workloads with mixed read/write access patterns.

The EX900 is built for system builders, laptop upgraders, and IT professionals handling HP fleet deployments who need a reliable, well-tested NVMe drive with manufacturer warranty support and certified compatibility across HP's PC portfolio. At 5.4 grams and 2.4mm tall, it installs without a heatsink in any standard M.2 slot and operates within a 0–70°C thermal envelope suitable for most notebook and desktop environments. While PCIe 4.0 options have proliferated at competitive prices, the EX900 remains a rational choice for systems limited to Gen 3 M.2 slots, or for buyers prioritizing HP's 2,000,000-hour MTBF rating and certified testing over peak sequential throughput figures.

Key Features

M. 2 2280, HP controller Offering with 4 flash memory channels that support PCIe 3. 1 x4 and NVMe 1. 3

Sequential read/write speeds up to 2, 100 Mbps/ 1, 500 Mbps, an industry top leading reliability (MTBF) 2M hours, and endurance (TBW) up to 200 TBW

Higher order LDPC error Correction for high speed parallel decoding and real time error Correction to ensure data integrity and security

Works on all Windows PC, Full compatibility with host. Exe (HP software pre-installation environment). Ideal upgrade for HP PCs

Manufactured to HP high quality standards and fully tested and CERTIFIED in HP laboratories. Not intended for use in HP workstations

Specifications

Capacity

500GB

Form Factor

M.2 2280

Interface

PCIe 3.1 x4, NVMe 1.3

NAND Type

3D TLC

Flash Channels

Sequential Read

Up to 2,100 MB/s

Sequential Write

Up to 1,500 MB/s

4KB Random Read

Up to 100,000 IOPS

4KB Random Write

Up to 80,000 IOPS

Read Latency

0.021ms

Write Latency

0.029ms

MTBF

2,000,000 hours

Endurance (TBW)

200 TBW

Power (Idle)

0.68W

Power (Active)

3.52W

Operating Temperature

0°C to +70°C

Storage Temperature

-40°C to +85°C

Shock Resistance

100G / 6ms

Vibration Resistance

3.1g (2–500 Hz)

Dimensions

22mm x 80mm x 2.4mm

Weight

5.4g

Pros & Cons

👍 Pros

2,100 MB/s sequential read over PCIe 3.0 x4 delivers measurably faster OS boot and application load times versus any SATA SSD at any capacity point
200 TBW write endurance at 500GB capacity provides strong long-term reliability for workstation-level daily write volumes
LDPC error correction with higher-order parallel decoding actively protects data integrity without a measurable performance penalty under sustained read/write cycles
4-channel controller with 3D TLC NAND maintains random read performance at 100,000 IOPS — adequate for multitasking and mixed-access workloads
M.2 2280 form factor at 5.4g and 2.4mm height fits virtually every modern desktop, laptop, and NUC motherboard with a PCIe M.2 slot

👎 Cons

PCIe 3.0 x4 tops out at 2,100 MB/s — systems with PCIe 4.0 M.2 slots gain no interface benefit from this drive, where Gen 4 NVMe options in the same price range offer 5,000+ MB/s
4KB random write IOPS at 80,000 trails competitive Gen 3 drives like the WD Blue SN570 at equivalent capacity, which matters for workloads with heavy small-file write patterns
No included heatsink; sustained large sequential write workloads (e.g., extended game installs, video ingestion) in thermally limited M.2 slots may cause throttling
HP designates this drive as not intended for HP workstations — Z-series workstation users should verify compatibility before purchasing
DRAM-less controller design means sustained write performance can dip as the SLC cache fills, perceptible during very large (100GB+) single-pass file write operations

Frequently Asked Questions

What interface and form factor does the EX900 use?

The EX900 is an M.2 2280 (22mm wide, 80mm long) drive using PCIe 3.1 x4 with NVMe 1.3 protocol. It fits any M.2 slot labeled NVMe or PCIe — it will not function in M.2 SATA-only slots.

What are the sequential read and write speeds, and what does that mean practically?

Sequential read tops out at 2,100 MB/s and write at 1,500 MB/s. A typical SATA SSD peaks at roughly 550 MB/s — the EX900 delivers approximately 4x that read throughput for large file transfers, OS loads, and application launches, where the difference is immediately perceptible.

What endurance rating does the EX900 carry?

The 500GB EX900 is rated for 200 TBW (terabytes written) with an MTBF of 2,000,000 hours. At typical consumer workloads of 30–50 GB written per day, 200 TBW represents multiple years of write endurance before reaching the rated limit.

Does the EX900 work in non-HP computers?

Yes — it is a standard M.2 NVMe drive compatible with any PC with an M.2 PCIe slot, including AMD and Intel desktops and laptops from any manufacturer. The HP compatibility note refers to HP's pre-installation environment software, not a hardware restriction.

Does the EX900 require a heatsink?

No heatsink is required under normal operating conditions — the drive is rated for 0°C to 70°C operation. Sustained heavy write workloads in cases with poor M.2 airflow may warrant an aftermarket heatsink, but thermal throttling is not a commonly reported issue under typical consumer use.