I am not recommending Dell at all. Have been searching for a 24" and was unlucky to buy Dell. Any way here are the features. Basically S2409w and ST2410 have the same set of Ports(DVI, HDMI, VGA, 2 Audio). A standard DVI cable+Vga will be Included in the Box for S2409W. Only VGA for St2410. I was not able to find the Dynamic contrast of S2409W any where. S2409W has all black design where as ST2410 has White bezel at the back. ST2410 looks good. S2409W has a little better Stand and has 50 cd/m2 more brightness than ST2410. Rest all features are same. I have used both and both fail miserably in Lagom Black test.
Dell S2409W
DISPLAY
Panel Size: 24" Wide
Panel Type: TN - Twisted Nematic
Maximum Resolution: 1920 X 1080
Contrast Ratio:1000:1 (typical)
Brightness:300 cd/m2 (typical)
Response Time:5 ms (grey-to-grey)
Viewing Angle:160° / 170° (typical)
Color Support:16.7 million colors
Pixel Pitch:0.276 mm
CONNECTIVITY
Digital Visual Interface - Digital (DVI-D) with High Definition Content Protection (HDCP) Video Graphics Array (VGA)
High-Definition Multimedia Interface (HDMI)
STAND
Tilt and built-in cable management
SECURITY
Security port (cable lock sold separately)
COLOR, SIZE AND WEIGHT
Dimensions (W x D x H):
22.72 inches (576.96 mm) x 8.76 inches (222.6 mm) x 16.39 inches (416.19 mm)
Weight:
Weight (panel only - for VESA mount): 5.01 kg (11.04 lbs)
Weight (with packaging): 8.6 kg (18.83 lbs)
Color:Black
Environmental and Regulatory
ELECTRICAL
Power: 100 to 240 VAX/50 or 60 Hz+- 3 Hz/2.0A (Max.)
Power Consumption Operational: 45 Watts (maximum), 31 Watts (normal)
Power Consumption Stand by / Sleep:
Less than 2 Watts
ENVIRONMENTAL
Temperature Range Operating:0 ° to 40 °C (32 ° to 104 °F)
Temperature Range Non-operating:Storage: 0 ° to 60 °C (32 ° to 140 °F)
Shipping: -20 ° to 60 °C (-4 ° to 140 °F)
Humidity Range Operating:10 - 80% (non-condensing)
Humidity Range Non-operating:Storage: 5% - 90% (non-condensing)
Shipping: 5% - 90% (non-condensing)
Altitude Operating:3,657.60 m (12,000 ft) max
Altitude Non-operating:3,657.60 m (12,000 ft) max
Dell ST2410 DISPLAY
Panel Size:24"
Aspect Ratio: Widescreen (16:9)
Panel Type:TN – Twisted Nematic
Optimal Resolution:1920 x 1080 at 60Hz
Contrast Ratio

ynamic Contrast Ratio 50000:1 (max)
Brightness:250 cd/m2 (typical)
Response Time:5ms
Viewing Angle(160 vertical / 160 horizontal)
Color Support:16.7 million colors
Pixel Pitch:0.277 mm
Display Type: Anti-glare
Device Type: Full HD Widescreen Flat Panel Monitor
CONNECTIVITY
High Definition Multimedia Interface (HDMI)
Digital Visual Interface - Digital (DVI-D) with High Definition Content Protection (HDCP)
Video Graphics Array (VGA)
STAND
Tilt adjustable (4° forward and 21° back)
BUILT-IN DEVICES
Kensington security ports
Audio In/Out
SECURITY
Security port (cable lock sold separately)
COLOR, SIZE AND WEIGHT
Dimensions (H x W x D):
416.79mm x 584.86mm x 217.00mm(16.29†x 23.03†x 8.54â€)
Weight (with Stand and cables)
5.54 kg (12.22 Ib)
Weight (with packaging)
6.78 kg (14.95 lb)
Environmental and Regulatory
ELECTRICAL
Voltage Required:100 to 240 VAC / 50 or 60 Hz + 3 Hz / 2.0A (maximum)
Power Consumption:22.5W(typical) / 30W (Maximum)
Temperature Range Operating:0° to 40° C (32° to 104° F)
Temperature Range Non-operating:Storage : -20° to 60° (-4° to 140° F)
Shipping : -20° to 60° (-4° to 140° F)
Humidity Range Operating:10% to 80% (non-condensing)
Humidity Range Non-operating:Storage : 5% to 90% (non-condensing)
Storage : 5% to 90% (non-condensing)
Altitude Operating:4,485 m (14,700 ft) max
Altitude Non-operating:12,191 m (40,000 ft) max