Free delivery in Nairobi CBD for orders above KES 20,000
TP-Link TL-WN851ND 300Mbps Wireless N PCI Adapter
Original price was: KSh 2,300.00.KSh 1,700.00Current price is: KSh 1,700.00. ex VAT
TP-Link TL-WN851ND 300Mbps Wireless N PCI Adapter
| Interface | 32-bit PCI |
| Wireless standards | IEEE 802.11n, IEEE 802.11g, IEEE 802.11b |
| Frequency | 2.400–2.4835 GHz |
| Signal rate | Up to 300 Mbps (11n), 54 Mbps (11g), 11 Mbps (11b) |
| Antenna | 2 × detachable omni-directional RP-SMA, 2 × 2 dBi |
| Security | 64/128-bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK |
| Dimensions | 133 × 121 × 22 mm |
Same day Delivery
Delivery
We deliver to the address you provide. Nairobi is often same-day on business days.
Across the country
Delivery outside CBD starts from KES 300
Warranty 1 year
72-hour (3-day) returns
Description
Desktop Wireless Card for Legacy PCI Slots
The TP-Link TL-WN851ND PCI Adapter adds a 2.4 GHz wireless interface to a desktop with a free 32-bit PCI slot. It complies with IEEE 802.11n, 802.11g and 802.11b. The card suits older towers and workstations that ship without onboard Wi-Fi.
Two detachable omni-directional antennas with 2×2 dBi gain connect through RP-SMA connectors. MIMO signalling reaches a 300 Mbps PHY rate under 802.11n and steps down to 54 Mbps on 11g and 11 Mbps on 11b. Reception sensitivity holds -68 dBm at 270M MCS and 10% PER.
A QSS button pairs the card with a supported router without typing a passphrase. Security covers 64/128-bit WEP, WPA/WPA2 and WPA-PSK/WPA2-PSK. The pack includes a low-profile bracket for slim chassis, a resource CD and a quick installation guide. Drivers cover Windows 2000 through Windows 7 in 32-bit and 64-bit builds.
Key Features
32-bit PCI Interface
Fits standard PCI slots on desktop motherboards and installs with a single screw.Detachable Antenna Pair
- Two omni-directional RP-SMA antennas at 2×2 dBi gain
- Swap for higher-gain units when the tower sits in a cabinet
MIMO Signalling
Mitigates data loss through walls and steel-and-concrete partitions at distance.Clear Channel Assessment
CCA avoids channel conflicts and applies channel binding for steadier throughput.Wide Encryption Support
Accepts 64/128-bit WEP, WPA/WPA2 and WPA-PSK/WPA2-PSK on the same radio.Low-Profile Bracket
Ships with a short bracket for compact and rack-style chassis.QSS Pairing
A push-button session negotiates the security key with a compatible access point.
Specifications
| Feature | Specification |
|---|---|
| Interface | 32-bit PCI |
| Wireless standards | IEEE 802.11n, IEEE 802.11g, IEEE 802.11b |
| Frequency | 2.400–2.4835 GHz |
| Signal rate | 11n up to 300 Mbps, 11g up to 54 Mbps, 11b up to 11 Mbps (dynamic) |
| Antenna | 2 × omni-directional, detachable RP-SMA |
| Antenna gain | 2 × 2 dBi |
| Reception sensitivity | 270M: -68 dBm @10% PER; 54M: -68 dBm @10% PER; 11M: -85 dBm @8% PER; 1M: -90 dBm @8% PER |
| Modulation | DBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM |
| Transmission power | Below 20 dBm |
| Wireless modes | Ad-Hoc, Infrastructure |
| Wireless security | 64/128-bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK |
| Dimensions | 133 × 121 × 22 mm |
| Certification | CE, FCC, RoHS |
| Operating temperature | 0–40 °C |
| Storage temperature | -40–70 °C |
| Operating humidity | 10–90% non-condensing |
| System requirements | Windows 7, Vista, XP, 2000 (32/64-bit) |
What’s in the Box
TL-WN851ND PCI adapter
Low-profile bracket
Resource CD
Quick installation guide
Why Choose the TL-WN851ND
Restores wireless access on towers with no spare USB or Ethernet drop.
Detachable antennas let installers reposition the radio without swapping cards.
CCA handling keeps throughput steadier in dense 2.4 GHz environments.
Legacy Windows driver coverage suits refurbished fleet deployments.
Low-profile bracket fits compact desktop and rack chassis.
Peter Njoroge (verified owner) –
Dropped into an old desktop and picked up signal fine.
Esther Wanjiru (verified owner) –
Driver installed quick on Windows 10.
Collins Barasa (verified owner) –
Inafanya kazi poa
Amina Hassan (verified owner) –
Solid
Joseph Kariuki (verified owner) –
Antenna feels a bit loose but connection stable so far.
Lydia Atieno (verified owner) –
Brought an old tower back online with this.