The HP ProDesk 400 G4 Small Form Factor (SFF) is an enterprise-class commercial business desktop computer engineered to deliver dependable 6th Generation quad-core processing power, expansive DDR4 multitasking memory, rapid solid-state storage speed, and workplace reliability in a compact, space-saving chassis. Designed as a rugged, agile workhorse for corporate office fleets, administrative workstations, medical billing desks, school labs, and dedicated remote desks, this SFF desktop combines tool-less chassis accessibility, dual native digital and analog video outputs (DisplayPort plus VGA), hardware-level TPM 2.0 security, and low-profile PCI Express expandability. This unit pairs a full-voltage Quad-Core Intel Core i5 processor with an expansive 16GB DDR4 multitasking memory layout, a rapid 256GB solid-state storage drive, its matching standard AC power cord, and dual-monitor display support, providing an agile, dependable, and space-conscious workstation pre-loaded with Windows 11 Pro.

HP ProDesk 400 G4 SFF | Core i5-6500 Quad-Core 3.60GHz Turbo | 256GB SSD | 16GB DDR4 RAM | DisplayPort + VGA | Low-Profile PCIe | Small Form Factor Desktop | Windows 11 Pro | AC Power Cord

The HP ProDesk 400 G4 SFF represents HP’s proven commercial desktop engineering, packing full desktop computational capability, hardware-level TPM 2.0 security, and multi-monitor productivity into a compact, low-profile chassis that can orient vertically as a slim tower or lay horizontally flat beneath a monitor. Powered by the full-voltage 65W 6th Generation Intel Core i5-6500 processor (4 Physical Cores, 4 Virtual Threads, running at a 3.20GHz base frequency and scaling up to a high 3.60GHz Max Turbo with a 6MB Intel Smart Cache), this desktop provides dedicated computing muscle for complex data spreadsheets, database administration, accounting platforms, inventory control systems, cloud portals, and intensive multi-tab web browsing. Outfitted with an expansive 16GB DDR4 memory configuration, a rapid 256GB solid-state storage drive, and dual native video outputs, it delivers snappy, click-to-open responsiveness across daily office environments.

• True Quad-Core 6th Gen Intel Core i5 Processing Muscle (65W Full-Voltage): The i5-6500 features 4 physical computing cores, 4 threads, and a 6MB Intel Smart Cache running up to 3.60GHz Turbo—delivering snappy single-core speed, cool thermals, and dependable multi-core execution to power through daily business software without slowdowns.

• Pro-Tier 16GB DDR4 Multitasking Pool: Outfitted with 16GB of high-speed 2400MHz DDR4 RAM across dual-channel DIMM slots, providing an expansive performance ceiling that completely eliminates memory bottlenecks when running multiple virtual desktops, dense spreadsheets, and dozens of browser tabs simultaneously (supports up to 32GB).

• Blazing-Fast Solid-State Storage: Equipped with a rapid 256GB Solid State Drive (SSD), delivering near-instant system boot times, lightning-quick application launches, and reliable, shock-resistant data stability compared to traditional mechanical drives.

• Dual Native Video Outputs for Multi-Monitor Productivity: Outfitted with one full-sized DisplayPort 1.2 port and one legacy VGA port, enabling seamless dual-screen desktop configurations right out of the box across modern digital monitors and existing legacy displays without requiring extra add-in graphics adapters.

• Comprehensive Commercial I/O Array: Features two front USB 3.1 Gen 1 Type-A ports, two rear USB 3.1 Gen 1 Type-A ports, four rear USB 2.0 ports (total of 8 USB ports), a hardwired RJ-45 Gigabit Ethernet port, a front universal audio combo jack, and rear 3.5mm audio line-in/line-out jacks.

• Modular Small Form Factor Chassis: Measuring roughly 10.6" x 3.7" x 11.7", the heavy-duty industrial steel chassis fits comfortably on crowded desks, mounts in tight spaces, and offers two low-profile PCIe expansion slots (1x PCIe 3.0 x16, 1x PCIe 3.0 x1) for adding dedicated low-profile graphics cards, extra networking ports, or Wi-Fi adapters.

Technical Specifications

• Model: HP ProDesk 400 G4 Small Form Factor (SFF)

• Chassis Form Factor: Small Form Factor (SFF) Desktop (Industrial Steel Chassis, Vertical/Horizontal Orientation)

• Processor: Intel Core i5-6500 6th Gen True Quad-Core (4 Cores, 4 Threads, 3.20GHz base, up to 3.60GHz Max Turbo Boost, 65W TDP, 6MB Intel Smart Cache)

• Memory: 16GB DDR4 2400MHz RAM (Configured across 2 full-sized DIMM slots, expandable up to 32GB)

• Storage: 256GB Solid State Drive (SSD)

• Graphics: Integrated Intel HD Graphics 530 (Multi-display 4K support and hardware video acceleration)

• Video Ports: 1x DisplayPort 1.2, 1x VGA (Supports dual independent monitors)

• Front I/O Ports: 2x USB 3.1 Gen 1 Type-A, 1x Universal Audio Headset Combo Jack

• Rear I/O Ports: 2x USB 3.1 Gen 1 Type-A, 4x USB 2.0 Type-A, 1x RJ-45 Gigabit Ethernet Port, 1x 3.5mm Audio Line-In Jack, 1x 3.5mm Audio Line-Out Jack

• Internal Expansion Slots: 1x Low-Profile PCIe 3.0 x16, 1x Low-Profile PCIe 3.0 x1, 1x M.2 (2280 for PCIe NVMe SSD), 1x M.2 (2230 for optional Wi-Fi/Bluetooth)

• Internal Drive Bays: 1x 3.5" Internal Hard Drive Bay (accommodates 2.5" SSD with bracket), 1x Slimline Optical Drive Bay

• Power Supply: Internal 180W Active PFC High-Efficiency Power Supply with matching AC Power Cord (Included)

• OS: Windows 11 Pro (64-bit, fully optimized and activated)

Why Choose the HP ProDesk 400 G4 SFF (Core i5 / 16GB DDR4 / 256GB SSD)?

🚀 The Dependable Commercial SFF Workhorse: The HP ProDesk 400 G4 SFF is an outstanding, cost-effective choice for corporate offices, small businesses, reception desks, shipping stations, or home offices that demand true 4-core desktop processing power scaling up to 3.60GHz, an expansive 16GB DDR4 memory cushion, rapid 256GB solid-state responsiveness, 8 USB ports, and dual-monitor display versatility in a sturdy, space-conscious steel desktop frame. Pre-loaded with a clean, secure Windows 11 Pro environment, it arrives completely updated, factory reset, and ready to deploy right out of the box with its standard power cord.

Serviceability Note: HP engineered the ProDesk 400 G4 SFF with a tool-less service design. Turning the captive rear thumbscrew allows the steel side panel to slide back effortlessly, providing immediate access to both DDR4 DIMM slots, the motherboard-mounted M.2 NVMe SSD slot, the swing-up drive cage, PCIe expansion slots, and the cooling assembly, making future maintenance, storage expansion, or memory additions remarkably quick.

🛡️ Verified for Quality: This commercial desktop PC has been professionally inspected and thoroughly bench-tested across strict hardware validation loops—including complete 16GB DDR4 memory diagnostics, full 256GB solid-state storage health and read/write performance evaluations, internal thermal cooling strain cycles, dual-monitor video port testing across DisplayPort and VGA jacks, and all USB/Ethernet port connection checks, ensuring pristine out-of-the-box reliability.