Escape from Tarkov · Key
RB-BK marked key
Type
Key
Size
1×1 (1 slot)
Weight
0.01 kg
Uses
10
Flea Market
From level 35
Base value
250,000 ₽
The RB-BK marked key (RB-BK) is a key in Escape from Tarkov. It opens 1 lock on Reserve and has 10 uses before it breaks. At the last price snapshot it sold best on the Flea Market for about 1,332,898 ₽.
Use it or sell it
No quest needs it. Run it if the loot behind the 1 door is worth more than 1,332,898 ₽, otherwise sell it.
Price
Snapshot · 2026-11-04Flea 24h avg
1,332,898 ₽
Flea 24h low
800,000 ₽
Best trader
127,500 ₽
Per slot
1,332,898 ₽
PvP flea prices before fees, from tarkov.dev. Refreshed hourly.
What the RB-BK marked key opens
| Map | Lock | Count | Note |
|---|---|---|---|
| Reserve | door | 1 |
How to get the RB-BK marked key
| Barter | Trader | You give |
|---|---|---|
| RB-BK marked key | Prapor LL2 | RDA-78 vaccine (Replicative DNA Attenuator) |
| RB-BK marked key | Prapor LL2 | RDA-78 vaccine (Replicative DNA Attenuator) |
What the RB-BK marked key is used for
| Barter for | Trader | Full cost |
|---|---|---|
| Dorm room 314 marked key | Jaeger LL3 | RB-VO marked key, RB-PKPM marked key, RB-BK marked key |
FAQ
What does the RB-BK marked key open in Tarkov?
It opens 1 door on Reserve. The key has 10 uses.
Is the RB-BK marked key needed for quests?
No quest asks for it.
Is the RB-BK marked key needed for the hideout?
No hideout upgrade needs it.
How much is the RB-BK marked key worth?
At the last snapshot (2026-11-04) the best sale was 1,332,898 ₽ on the Flea Market (24h average, before fees). The price box on this page shows the current figure, refreshed hourly.
How do you get the RB-BK marked key?
Besides finding it in raid, you can barter with Prapor LL2.
More keys for Reserve
Data from the free tarkov.dev API (regular (PvP)), joined by XGamingServer: quests, hideout, map locks, crafts and barters as of 2026-11-04. Prices refresh hourly. More on the community wiki. Not affiliated with Battlestate Games.
Escape from Tarkov Server Hosting
Get managed Escape from Tarkov server hosting with this tool built into your panel — configure, deploy, and play in minutes. Instant setup, DDoS protection, 24/7 support.