KINDLY BE ADVISED
There are 2 types of DP cables available: "Active" and "Passive".
The DP port of the computer works with "Active" type DP cable, if yours is "Passive", it can't display.

SPECIFICATION
Processor:
Core i7-1265U Processor, 10 Cores, 12 Threads, 1.80GHz Base Frequency, 4.80GHz Max Frequency, 12MB L3 Cache, 15W TDP.
Core i7-1260P Processor, 12 Cores, 16 Threads, 2.10GHz Base Frequency, 4.70GHz Max Frequency, 18MB Smart Cache, 28W TDP.
Processor Graphics:
i7-1265U: Iris Xe Graphics 96 (Integrated); 350 MHz Graphics Base Frequency; 1.25 GHz Graphics Burst Frequency; 8K Support: Yes, at 60Hz
i7-1260P: Iris Xe Graphics eligible (Integrated); 1.40 GHz Graphics Burst Frequency; 8K Support: Yes, at 60Hz
Triple Display: HD2.1 up to 4096*2304@60Hz Display, DP1.4a supports 7680*4320@60Hz Display at most, Type-C
RAM: Dual Channel SO-DDR4 2400/2666/3200MHz, Max64GB
Storage: Storage: 1*M.2 slot supports expension to NVMe hard disk signal; 1*M.2 NVMe x4 signal pedestal supports 2280 size SSD
Network: 6*i226-V 2.5G network cards,M.2 seat
Case Material: Brushed Aluminum Alloy Case
Product Size: 145.6*145.4*53.6mm

Connector Ports:
Front-Panel:
1 x 12V DC input, 6 x 2.5G, Hard disk indicator, Power indicator
Back-Panel:
Power Switch, 1 x DP, 1 x HD, 2 x USB3.0, 2 x USB3.2, 1 x Type-C, 1 x TF, 1 x Reset

CONTENT
Mini PC, Power Cable, Power Supply, Bracket Mount, Screws