R9J9P NJJMW - AMD Radeon RX 550 4GB GDDR5 Low Profile Graphics Card

OEM Radeon RX 550 graphics card with 4GB of GDDR5 memory, a low-profile half-height mounting bracket, and three digital monitor outputs. This single-slot card provides one full-size DisplayPort 1.4 and two Mini DisplayPort 1.4 connections, supporting up to three simultaneous 4K displays at 60Hz or one 5K display at 60Hz in supported configurations.

The compact, bus-powered design requires no auxiliary PCIe power cable and is intended for compatible small form factor desktops that require a half-height expansion bracket.

Technical Specifications

• Primary Part Numbers: R9J9P, NJJMW
• Product Type: Internal discrete graphics card
• Graphics Processor: AMD Radeon RX 550
• GPU Architecture: Polaris
• Graphics Memory: 4GB
• Memory Type: GDDR5
• Memory Interface: 128-bit
• Memory Speed: Up to 7Gbps effective
• Memory Bandwidth: Up to 112GB/s
• Stream Processors: 512
• Boost Clock: Up to 1183MHz
• Host Interface: PCI Express 3.0 x8 electrical
• Connector Form: Physical PCIe x16 edge connector
• Video Outputs: 1x DisplayPort 1.4 and 2x Mini DisplayPort 1.4
• Maximum Simultaneous Displays: Up to 3
• Multi-Display Resolution: Up to three 4K displays at 60Hz
• Maximum Single-Display Resolution: Up to 5K at 60Hz
• DirectX Support: DirectX 12
• OpenGL Support: OpenGL 4.5 or later with compatible drivers
• Video Acceleration: H.264 and H.265 / HEVC hardware acceleration
• Cooling Type: Active cooling
• Cooling Fan: 1x integrated fan
• PCB Design: Short low-profile board
• Installed Bracket: Low profile / half height
• Slot Width: Single slot
• Board Power: Approximately 50W to 55W
• External Power Connector: None
• Power Source: Motherboard PCIe slot
• Board Family: OP14L
• PCB Reference: D091 / 109-D09187-00 series
• Application: Small form factor desktops, multi-monitor workstations, digital signage, 4K video playback, office applications, and light graphics workloads

Interchangeable / Replacement Part Numbers

NJJMW, 0NJJMW, CN-0NJJMW, R9J9P, 0R9J9P, CN-0R9J9P

Low-Profile Assembly References: OP14L, OP14L V1

The part numbers above identify the low-profile / half-height bracket configuration. NDRG5 and 6J78X use the electrically equivalent RX 550 board with a full-height mounting bracket and should not be treated as direct physical replacements unless the bracket is changed.

Need the Full-Height Tower Version?

This page is for the low-profile / half-height version used in compatible Small Form Factor systems. For a Tower or Mini Tower chassis requiring a standard full-height bracket, purchase one of the following versions:

⭐ NDRG5 - AMD Radeon RX 550 4GB GDDR5 Full Height Graphics Card

⭐ 6J78X - AMD Radeon RX 550 4GB GDDR5 Full Height Graphics Card

The low-profile and full-height versions use the same basic graphics-card design, but their installed mounting brackets are different.

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on the system’s exact chassis, available PCIe slot, BIOS or UEFI support, PCIe slot-power allowance, and internal clearance. This low-profile version is intended for Small Form Factor systems and does not fit Micro systems without a conventional PCIe expansion slot.

✔️ OptiPlex 3000 Series Small Form Factor: OptiPlex 3050 SFF upgrade configurations, OptiPlex 3060 SFF, OptiPlex 3070 SFF
✔️ OptiPlex 5000 Series Small Form Factor: OptiPlex 5050 SFF upgrade configurations, OptiPlex 5060 SFF, OptiPlex 5070 SFF
✔️ OptiPlex 7000 Series Small Form Factor: OptiPlex 7050 SFF upgrade configurations, OptiPlex 7060 SFF, OptiPlex 7070 SFF
✔️ OptiPlex XE Series Small Form Factor: OptiPlex XE3 SFF
✔️ Additional Small Form Factor Systems: Systems with a conventional low-profile PCIe x16 slot, clearance for a single-slot actively cooled card, sufficient PCIe slot power, and compatible system firmware may support this card after verification

☑️ Key Features

☑️ 4GB of dedicated GDDR5 graphics memory
☑️ Low-profile half-height mounting bracket
☑️ Single-slot design for compatible compact desktops
☑️ One full-size DisplayPort 1.4 output
☑️ Two Mini DisplayPort 1.4 outputs
☑️ Supports up to three simultaneous displays
☑️ Supports three 4K displays at 60Hz in validated configurations
☑️ Supports one 5K display at 60Hz
☑️ No 6-pin or 8-pin auxiliary power connector required
☑️ Active single-fan cooling
☑️ PCI Express 3.0 x8 interface with a physical x16 connector
☑️ Suitable for office productivity, digital signage, multi-monitor workstations, video playback, and light content creation

⚙️ Fit Notes

✓ This listing is specifically for the low-profile / half-height bracket version.
✓ Confirm that the computer has a conventional low-profile PCIe expansion slot. Micro, Mini PC, and Ultra form factors without an internal PCIe card slot are not compatible.
✓ Do not order this version for a Tower or Mini Tower chassis unless you already have the correct full-height bracket.
✓ The card uses a physical PCIe x16 connector operating through eight PCIe 3.0 lanes.
✓ No auxiliary PCIe power cable is required. Power is supplied through the motherboard’s PCIe slot.
✓ This card has no HDMI, DVI, or VGA output. Displays using those connections require a compatible DisplayPort adapter.
✓ Two outputs are Mini DisplayPort. Standard DisplayPort cables will not connect directly to the Mini DisplayPort sockets.
✓ Three-display 4K operation requires compatible displays, appropriate cables or adapters, supported driver settings, and sufficient DisplayPort bandwidth.
✓ Do not confuse this 4GB Radeon RX 550 with the Radeon 550 2GB, RX 540, RX 640, or RX 6400. These are different graphics-card models.