HPE ProLiant ML350 Gen9 Parts

The HPE ProLiant ML350 Gen9 is the two-socket 5U tower built on the Intel C610 chipset, taking Xeon E5-2600 v3 and v4 processors across 24 DDR4 slots and a drive front end that starts at eight hot-plug bays. Every part below is genuine HPE, available new and refurbished, and tested for compatibility before it ships. Live pricing for each part number appears in the tables further down this page.

ML350 Gen9 Platform at a Glance

• Form factor: tower or rack at 5U; the tower stands 18.27 × 8.62 × 30.28 inches and weighs 66.14 lb to 121.30 lb
• Processors: up to two Intel Xeon E5-2600 v3 or v4, from four cores each to the 22-core E5-2699 v4, with up to 55MB of L3 cache
• Memory: 24 DDR4 slots, twelve per processor across four channels; 768GB with Registered DIMMs, 1.5TB Load Reduced on v3 and 3TB on v4
• Drive bays: eight hot-plug SFF or eight hot-plug LFF bays as standard, documented to 48 SFF or 24 LFF with further cages and expanders
• Storage controller: embedded Dynamic Smart Array B140i on entry models, or the Flexible Smart Array P440ar with 2GB flash backed write cache on base and performance models
• Networking: an embedded HPE 1Gb Ethernet 4-port 331i Adapter plus a dedicated 1Gb iLO 4 port — five RJ-45 jacks in all
• Expansion: nine slots — eight PCIe 3.0 and one PCIe 2.0, three of them x16 at full speed; slots 5 to 9 need the second processor
• Power and cooling: four Flex Slot hot-plug supply bays taking 500W, 800W or 1400W units, with three to eight fans by processor count and fan redundancy
• Acoustics: 19 dBA declared bystander sound pressure at idle on a two-processor SFF tower, 28 dBA operating, rated FCC Class A
• Management: embedded HPE iLO 4 with 4GB NAND, UEFI boot by default, an internal micro-SD slot and TPM 1.2

Which embedded controller the tower was built with decides most ML350 Gen9 orders. Entry models carry the SATA-only Dynamic Smart Array B140i; base and performance models carry the 12Gb Flexible Smart Array P440ar with 2GB of cache — and a SAS drive will not run behind the first of those. The other question is the front end: one cage of eight bays as standard, documented to 48 SFF or 24 LFF.

Specifications on this page are taken from the HPE QuickSpecs for this server, HPE ProLiant ML350 Generation9 (Gen9) QuickSpecs, Version 31.

Shop ML350 Gen9 Parts by Category

• ML350 Gen9 memory — DDR4-2133 and DDR4-2400 Registered and Load Reduced kits, 8GB to 128GB, plus NVDIMMs
• ML350 Gen9 drives — 12G SAS and 6G SATA hot-plug drives in SFF and LFF Gen9 carriers, SSDs, NVMe and M.2
• ML350 Gen9 storage controllers — Smart Array P440ar, P440, P840, P441 and P841 cards, plus H240 series Host Bus Adapters
• ML350 Gen9 networking adapters — Gigabit, 10 Gigabit and 25 Gigabit Ethernet server adapters in copper and SFP
• ML350 Gen9 power supplies — 500W, 800W and 1400W Flex Slot units in Platinum, Titanium, Universal and −48VDC
• ML350 Gen9 processors — Xeon E5-2600 v3 and v4 kits, four to 22 cores, heatsink and fans included

Working on a different tower? We also stock parts for the preceding HPE ProLiant ML350p Gen8, the following HPE ProLiant ML350 Gen10 and this generation's entry tower, the HPE ProLiant ML150 Gen9. The rack server on the same processors is the HPE ProLiant DL380 Gen9; the rest is under HPE parts by server model.

ML350 Gen9 Parts FAQ

Is the ML350 Gen9 a tower or a rack server?
Both. HPE lists the form factor as tower or rack at 5U, and documents a Tower to Rack Conversion Kit supplying a 5U rail kit, cable management arm and rack enablement hardware.

What processors does the ML350 Gen9 support?
Up to two Intel Xeon E5-2600 v3 or E5-2600 v4 processors, from four cores per processor up to the 22-core E5-2699 v4. Mixing different processor models in one server is not supported, so a second CPU has to match the one already fitted.

How much memory can an ML350 Gen9 take?
768GB using twenty-four 32GB Registered DIMMs. Load Reduced DIMMs go further: 1.5TB with 64GB modules on an E5-2600 v3 machine, and 3TB with 128GB modules on an E5-2600 v4 machine.

How many drives fit in an ML350 Gen9?
Eight hot-plug SFF or eight hot-plug LFF bays ship as standard. HPE documents expansion to 48 SFF or 24 LFF using additional drive cages plus expander hardware, and the X4 RPS Enablement Kit past three cages.

Is the ML350 Gen9 quiet enough for an office?
It is a floor-standing machine rated FCC Class A. HPE declares 19 dBA bystander sound pressure at idle on a two-processor SFF tower, rising to 28 dBA operating, and notes that added options raise those figures.

Is the ML350 Gen9 still worth buying parts for?
It is a widely deployed tower and its parts are plentiful. The platform shipped in very different configurations - two embedded controllers, two processor generations, one drive cage to six - so matching a part to the machine you own matters more here than on a simpler server.

✅ Looking for a specific ML350 Gen9 part? Browse our full selection below.

Why Global One?

• Trusted by thousands. Over 36,000 customers in 100+ countries trust Global One Technology to deliver mission-critical HP Enterprise hardware - including Fortune 500 businesses, schools, hospitals, and federal, state, and local goverment agencies.
• HPE is our specialty! We only sell genuine HP Enterprise parts.
• EASY ordering process. Purchase online now with credit card or PayPal!
• FAST shipping. Global One Technology ships orders received by 4pm ET the same day and offers NEXT DAY delivery to US customers.