Q31500ST is a compact firewall server mini PC powered by Intel Meteor Lake U/H and Arrow Lake U/H Ultra processors. Equipped with six Intel I226-V 2.5G LAN, two X540 10G LAN, and two JL82599ES 10G SFP+ ports, it delivers robust performance for high-bandwidth and secure network environments.
Intel Meteor Lake U/H Ultra Processor(Series 1)
Intel Arrow Lake U/H Ultra Processor(Series 2)
1 × Display Port, 1 × HDMI
3 × USB 3.0, 1 ×Type C（USB 3.0）
2 × M.2, 1 × SATA 3.0
1 × RS-232 (RJ-45)
6 × Intel I225-V/I226-V 2.5 Gigabit LAN
2 × Intel X540 10 Gigabit LAN
2 × Intel JL82599ES 10 Gigabit SFP+
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| Processor System | |
| CPU | Intel Meteor Lake U/H Ultra Processor(Series 1) Intel Arrow Lake U/H Ultra Processor(Series 2) |
| CPU TDP | By CPU |
| Memory | 2 × DDR5 SO-DIMM Socket (Up to 96G) |
| Chipset | By CPU |
| Graphics | By CPU |
| NPU | By CPU |
| LAN Chipset | 6 × Intel I226-V 2.5 Gigabit LAN 2 × Intel X540 10 Gigabit LAN 2 × Intel JL82599ES 10 Gigabit SFP+ |
| Audio | Realtek HD Audio |
| Watch Dog | Yes |
| Front I/O | |
| Power Button | 1 × Power Button, 1 × Reset Button |
| LED | 1 × Power LED, 1 × HDD LED |
| Serial Port | 1 × RS-232 Port (RJ-45) |
| USB | 1 × USB 3.0, 4 × USB 2.0 |
| SIM Card Slot | 1 |
| Audio | 1 × Mic-in, 1 × Line-out |
| Rear I/O | |
| Power | 1 × DC Jack |
| USB | 2 × USB 3.0, 1 × Type C (USB 3.0) |
| Video Output | 1 × Display Port, 1 × HDMI |
| LAN | 6 × Intel I226-V 2.5 Gigabit LAN 2 × Intel X540 10 Gigabit LAN Max. speed of 12Gbps for both interfaces |
| SFP+ | 2 × Intel JL82599ES 10 Gigabit SFP+ Max. speed of 12Gbps for both interfaces |
| Storage | |
| Type | 1 × 2.5-inch HDD/SSD 2 × M.2 for SSD (M key, Type: 2280) |
| Expansion | |
| M.2 | 1 × M.2 for SSD (M key, Type: 2280, PCIe 4.0 × 4) 1 × M.2 for SSD (M key, Type: 2280, PCIe 4.0 × 1) 1 × M.2 for 4G/5G (B key, Type: 3042/3052) |
| PCIe | 1, PCIe slot (Type: X16, PCIe 5.0 × 8) |
| AutoStart Jumper | Yes, 1 × 3Pin, Pitch 2.0mm |
| CMOS Clear Jumper | Yes, 1 × 3Pin, Pitch 2.0mm |
| Power Requirement | |
| Power Adapter | 19V4.74A |
| DC Jack | 5.5mm, 2.5mm |
| Environmental | |
| Operating Temp | 0°C~50°C |
| Non-Operating Temp | -20°C~80°C |
| Humidity | 10%~90% |
| Mechanical | |
| Material | Aluminium Alloy |
| Dimension | 200 × 200 × 53mm |
| Weight | 1.6kg |
| Mounting | VESA Mounting Bracket |
| Packaging Dimension | 285 × 260 × 120mm |
| Kensington Lock | Yes |
| Cooling Mode | Fan |
| OS Support | |
| OS | UEFI Windows 10, UEFI Linux |
| NO. | Category | Quantity | Remark |
| 1 | Mini PC | 1 | |
| 2 | Silicone Mat | 4 | |
| 3 | VESA Bracket | 1 | |
| 4 | Screws for VESA Bracket | 1 | |
| 5 | Power Adapter | 1 | |
| 6 | AC Power Cord | 1 | |
| 7 | Screws for SATA SSD/HDD | 1 | |
| 8 | SATA cable for SSD/HDD | 1 | Option |
| 9 | Antennas | 2 | Option |
Quick Order Model: Q31551ST-S15
| Ordering Code | Q31551ST | Q31571ST | Q51551ST | Q51571ST |
| Case | S15 | S15 | S15 | S15 |
| Code Name | Meteor Lake | Meteor Lake | Meteor Lake | Meteor Lake |
| Processor Type | Core Ultra 5 | Core Ultra 7 | Core Ultra 5 | Core Ultra 7 |
| Processor Number | 125U | 155U | 125H | 155H |
| Total Cores | 12 | 12 | 14 | 16 |
| # of Performance-cores | 2 | 2 | 4 | 6 |
| # of Efficient-cores | 8 | 8 | 8 | 8 |
| # of Low Power Efficient-cores | 2 | 2 | 2 | 2 |
| # of Threads | 14 | 14 | 18 | 22 |
| Max Turbo Frequency | 4.30 GHz | 4.80 GHz | 4.50 GHz | 4.80 GHz |
| Intel Turbo Boost Max Technology 3.0 Frequency | 4.80 GHz | |||
| Performance-core Max Turbo Frequency | 4.30 GHz | 4.80 GHz | 4.50 GHz | 4.80 GHz |
| Efficient-core Max Turbo Frequency | 3.60 GHz | 3.80 GHz | 3.60 GHz | 3.80 GHz |
| Low Power Efficient-core Max Turbo Frequency | 2.10 GHz | 2.10 GHz | 2.50 GHz | 2.50 GHz |
| Performance-core Base Frequency | 1.30 GHz | 1.70 GHz | 1.20 GHz | 1.40 GHz |
| Efficient-core Base Frequency | 800 MHz | 1.20 GHz | 700 MHz | 900 MHz |
| Low Power Efficient-core Base Frequency | 700 MHz | 700 MHz | 700 MHz | 700 MHz |
| Cache | 12M | 12M | 18M | 24M |
| Processor Graphics | Intel Graphics | Intel Graphics | Intel Arc graphics | Intel Arc graphics |
| 10G SFP+ | JL82599ES | JL82599ES | JL82599ES | JL82599ES |
| 10G RJ45 | JLX540-AT2 JLX540-BT2 | JLX540-AT2 JLX540-BT2 | JLX540-AT2 JLX540-BT2 | JLX540-AT2 JLX540-BT2 |
| TDP | 15-57W | 15-57W | 28-115W | 28-115W |
| Category | Description |
| TPM 2.0 | 1 (Z32H330TC) |
