Dell Precision 7550
Dell's 15.6-inch top-tier mobile workstation of 2020 with 45 W 10th Gen Intel Core H-series or Xeon W-10000M processors, NVIDIA Quadro T1000 to RTX 5000 graphics on a separate GPU card, four DDR4 SO-DIMM slots (ECC optional) up to 128 GB and three M.2 NVMe SSD slots. Dell's store now lists it as discontinued.
Memory
- Slots
- 4 × DDR4 SO-DIMM, dual-channel; the secondary memory sits under the base cover, the primary memory under the keyboard behind a memory shield
- Speed
- 2666, 2933 or 3200 MHz
- Module sizes
- 4, 8, 16 or 32 GB per slot
- Minimum
- 8 GB
- Maximum
- 128 GB (4 × 32 GB)
- ECC
- ECC SO-DIMM configurations at 2666 and 2933 MHz, up to 128 GB
- 3200 MHz
- SuperSpeed non-ECC only, up to 64 GB (4 × 16 GB)
- Population order
- 1 DIMM: SODIMM1; 2 DIMMs: SODIMM1 + SODIMM3; 4 DIMMs: all slots (Dell memory matrix)
Storage
- Slots
- Three M.2 SSD slots (slots 3, 4 and 5 in the service manual)
- Slot 3
- M.2 2280, under the base cover
- Slot 4
- M.2 2280 only (no 2230), under the base cover or behind the optional SSD door
- Slot 5
- M.2 2230 or 2280, under the base cover
- M.2 2230
- Gen 3 PCIe x4 NVMe, Class 35, up to 256 GB
- M.2 2280 Class 40
- Gen 3 PCIe x4 NVMe, up to 2 TB
- M.2 2280 Class 50
- Gen 3 PCIe x4 NVMe, up to 1 TB
- Self-encrypting
- M.2 2280 Class 40 SED, up to 1 TB
- RAID
- BIOS SATA Operation: Disabled, AHCI or RAID On (default RAID On)
- Card reader
- SD card reader (SD, SDHC, SDXC)
Graphics
- Integrated (Core)
- Intel UHD Graphics 630
- Integrated (Xeon)
- Intel UHD Graphics P630
- NVIDIA Quadro T1000
- 4 GB GDDR6
- NVIDIA Quadro T2000
- 4 GB GDDR6
- NVIDIA Quadro RTX 3000
- 6 GB GDDR6
- NVIDIA Quadro RTX 4000
- 8 GB GDDR6
- NVIDIA Quadro RTX 5000
- 16 GB GDDR6
- Outputs
- Mini DisplayPort 1.4, HDMI 2.0, 2 × Thunderbolt 3 (USB-C)
- External displays
- Up to four 4K displays (two USB-C, HDMI, Mini DisplayPort) or one 5K display over two USB-C, or one USB-C plus Mini DisplayPort
- Modes
- Switchable graphics enabled by default in BIOS; Dell's display guide covers hybrid, hybrid with direct output and discrete modes
Expansion
- M.2 SSD
- Three M.2 SSD slots (see Storage)
- WLAN
- WLAN card (Intel AX201)
- WWAN
- Optional WWAN card (DW5821e) with microSIM slot under the base cover
- GPU
- Discrete GPU on a separate GPU card, fed by a GPU power cable
- Smart card
- Optional contacted smart card reader on the left side
Networking
- Ethernet
- Intel Ethernet Connection I219-LM, 10/100/1000 Mbps, RJ45
- Wi-Fi
- Intel Wi-Fi 6 AX201, 2.4/5 GHz, up to 2400 Mbps, Bluetooth 5.1
- WWAN (optional)
- Qualcomm Snapdragon X20 LTE (DW5821e), Cat 16, up to 1 Gbps DL / 150 Mbps UL; GPS/GLONASS/Beidou/Galileo; not available with the IR camera
- NFC
- Optional contactless smart card / NFC in the security bundles
Power
- Adapter
- 180 W, 19.5 VDC, 9.23 A; 100-240 VAC, 2.34 A max input
- Connector
- 7.4 mm barrel (DC-in on the rear)
- Adapter size
- 23 × 75 × 152 mm, 0.58 kg
Ports
- Thunderbolt
- 2 × USB 3.2 Gen 2 Type-C with Thunderbolt 3 (left side)
- USB-A
- 1 × USB 3.2 Gen 1, 1 × USB 3.2 Gen 1 with PowerShare (right side)
- Video
- 1 × HDMI 2.0, 1 × Mini DisplayPort 1.4 (Dell footnote: UMA with HBR2) (rear)
- Network
- 1 × RJ45 (rear)
- Audio
- Universal audio jack; Realtek ALC3281, 2 speakers (2 W average, 2.5 W peak), dual-array microphones
- Card slots
- SD card reader; optional smart card reader; microSIM (WWAN models, internal)
- Security
- Wedge-shaped lock slot
Display
- FHD WVA
- 1920×1080, 220 nits, 45% NTSC, 600:1, anti-glare, non-touch
- FHD WVA 500 nits
- 1920×1080, 500 nits, 100% DCI-P3, 600:1, anti-glare, non-touch
- FHD WVA touch
- 1920×1080, 500 nits, 100% DCI-P3, 600:1, anti-glare, touch
- UHD HDR400
- 3840×2160, 500 nits, 100% Adobe RGB, 1500:1, anti-glare
- UHD HDR600
- 3840×2160, 600 nits, 100% Adobe RGB, 6000:1, anti-glare
- Size
- 15.6", 60 Hz; 141 ppi (FHD) or 282 ppi (UHD)
- Camera
- HD 720p RGB camera, or IR camera (Windows Hello) with proximity sensor; camera shutter
Battery
- Options
- 6-cell 68 Wh ExpressCharge Boost, 6-cell 95 Wh ExpressCharge Boost, or 6-cell 95 Wh Long Cycle Life
- ExpressCharge Boost
- Target 0-35% in 20 minutes (16-45 °C)
- Life span
- 300 cycles (68/95 Wh), 1000 cycles (95 Wh LCL)
- Coin cell
- Yes
Physical
- Dimensions
- 360.00 × 242.00 mm; 25.00 mm (front) to 27.36 mm (rear) thick
- Weight
- From 2.45 kg (5.42 lb)
- Keyboard
- 18.70 × 18.05 mm key pitch, 101 keys (US); backlight hotkey Fn+F5
- Touchpad
- 99.5 × 80 mm
- Operating temp
- 0-35 °C; altitude up to 3048 m
Management
- vPro
- Intel vPro on i5-10400H, i7-10850H, i7-10875H, i9-10885H, Xeon W-10855M and W-10885M
- TPM
- Discrete TPM 2.0, FIPS 140-2 and TCG certified; firmware TPM supported
- Authentication
- Fingerprint reader in power button or FIPS fingerprint reader in palm rest, ControlVault 3 (FIPS 140-2 Level 3), contacted and contactless smart card, NFC, IR camera
- BIOS
- Absolute Persistence Module support, PXE, Wake on Dell USB-C Dock, Data Wipe on Next Boot
- Warranty
- 3-5 years Basic onsite, ProSupport or ProSupport Plus; optional Accidental Damage Service
Operating systems
- Windows
- Windows 10 Home, Pro, Enterprise, Pro Education, Pro China, Pro for Workstations (64-bit)
- Linux
- Red Hat Enterprise Linux 8.2 (certification only), Ubuntu 18.04 SP1
Processors
- Intel Core i5-10400H
- Intel Core i7-10750H
- Intel Core i7-10850H
- Intel Core i7-10875H
- Intel Core i9-10885H
- Intel Xeon W-10855M
- Intel Xeon W-10885M